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Monsters Inside Me is an American television documentary series about infectious diseases. It includes first-person interviews with people and medical professionals telling their personal stories about contracting rare diseases with most of them being parasites. Interviews with contributors are shot on location across North America. Recreations are mostly filmed in hospitals and homes in New York City.

Monsters Inside Me
Monsters Inside Me Logo.jpg
Monsters Inside Me Logo
Directed byKyle McCabe, Alexis Siggers, Sally Freeman, Ed Hambleton
Presented byDan Riskin
Narrated byJustin Peed
Jason Done (UK, until series 6)
Country of originUnited States
Original language(s)English
No. of seasons8
No. of episodes75
Executive producer(s)Nicola Moody
Erin Wanner
Dominic Stobart
Producer(s)Kyle McCabe
Running time45 min.
Production company(s)Optomen Productions
DistributorAnimal Planet and Discovery Channel
Original networkAnimal Planet
Original releaseJuly 1, 2009 –
Related showsBugs, Bites & Parasites
External links



Each episode has dramatizations that show illnesses caused by an infectious disease or medical affliction. Once the agent has been identified, their life cycles and general behaviors are illustrated. Justin Peed is the narrator, and biologist Dan Riskin explains how and why each infectious agent works inside its host. Most shows start as a commonly diagnosed disease but then transform into a different life-threatening or serious disease, which will be cured most of the time at the end. Out of the 216 cases documented on the show, only 12 of those ended in the victim dying, usually from a disease with an extremely low survival rate.

The overwhelming majority of cases and their victims occur throughout the United States, but a few cases and their victims come from Canada.

The show's first two seasons focused solely on parasites and parasitic infections, but since the third season, the show has included scenarios and medical cases about general infectious diseases and medical afflictions, including those caused by viruses, bacteria, fungi, and foreign objects.

The second season premiered on Wednesday June 9, 2010 and then returned for a third season on October 5, 2012.[1] As of January 7, 2011, Monsters Inside Me was broadcast in Canada by Discovery Science. It also airs on Discovery in the UK, and broadcasts in different languages on various Discovery networks across the world.


SeasonEpisodesOriginally aired
First airedLast aired
16July 1, 2009 (2009-07-01)August 5, 2009 (2009-08-05)
210June 9, 2010 (2010-06-09)August 25, 2010 (2010-08-25)
310October 5, 2012 (2012-10-05)December 7, 2012 (2012-12-07)
410September 30, 2013 (2013-09-30)December 18, 2013 (2013-12-18)
510October 9, 2014 (2014-10-09)December 18, 2014 (2014-12-18)
610October 29, 2015 (2015-10-29)December 22, 2015 (2015-12-22)
77October 6, 2016 (2016-10-06)December 15, 2016 (2016-12-15)
812October 15, 2017 (2017-10-15)December 17, 2017 (2017-12-17)

Episode listEdit

Season 1 (2009)Edit

No. in
TitleOriginal air dateProd.
11"Sleeper Cells"July 1, 2009 (2009-07-01)101
In 2002, an 11 month old baby boy gets infected with Baylisascaris procyonis worms that cause him to sleep excessively, lose his balance and almost go blind. In 1967, an elderly Vietnam War veteran was diagnosed with malaria and successfully treated, but later in 2003, he has his legs and testicles destroyed by Lymphatic filariasis caused by Wuchereria bancrofti worms. A young man gets Schistosoma mansoni flukes in his brain, which cause dizziness and nausea he picked up from Africa in 1998.
22"Outbreak"July 8, 2009 (2009-07-08)102
A closer look at parasitic outbreaks from across the U.S. In 2000, a group of teenage students are affected by Angiostrongylus cantonensis worms after they ate a contaminated salad in Jamaica. An outbreak of Cryptosporidium hominis occurs in the south part of Milwaukee, Wisconsin and kills 101 people, caused by human feces contaminating the city's water system and evaded the water treatment as the cysts survive chlorine. An elderly delivery man in Dallas, Texas comes down with leishmaniasis.
33"Sex Maniacs"July 15, 2009 (2009-07-15)103
A young man gets botfly maggots in his head after he went on a trip to Belize. An employee at a chemical factory who used to smoke contracts the Paragonimus kellicotti fluke from eating raw crayfish, causing him to cough up blood. A teenage waitress deals with bed bugs who have hitched a ride in her suitcase after staying in a hotel on vacation.
44"Masters of Disguise"July 22, 2009 (2009-07-22)104
A 16-year-old girl contracts Acanthamoeba keratitis from expired contact lenses and almost loses her sight. An elderly Bangladeshi doctor is infected with Strongyloides stercoralis worms that laid dormant inside his body for 60 years. A 56-year-old runner contracts babesiosis without even noticing it.
55"Hijackers"July 29, 2009 (2009-07-29)106
In 1998, a 4-year-old boy almost goes blind in his left eye due to Toxocara canis. An 11-year-old boy dies from amoebic meningitis caused by Naegleria fowleri. A man comes down with human African trypanosomiasis.
66"Living with the Enemy"August 5, 2009 (2009-08-05)105
A Bolivian woman is infected with Taenia solium cysts that reduce her flow of spinal fluid she got when she grew up in Bolivia. A farmer comes down with toxoplasmosis and almost goes blind in his left eye. A New York banker contracts malaria.

Season 2 (2010)Edit

No. in
TitleOriginal air dateProd.
71"Suicide Attackers"June 9, 2010 (2010-06-09)202
A teenage dance instructor is suddenly stopped in her tracks by unbearable abdominal pain and vomiting. Tests find a mysterious mass in her colon that turns out be made of decaying Anisakis simplex worms that she became infected with by eating raw salmon in sushi. A middle-aged banker gets seizures from Taenia solium that he picked up from traveling to his home country of Haiti, a developing nation harboring lots of parasites. In 1981, a scientist is infected with onchocerciasis and becomes the first person to take ivermectin.
82"Feeding Frenzy"June 16, 2010 (2010-06-16)203
Entamoeba histolytica eats 60% of a schoolteacher's liver; to save his life, doctors remove most of his liver. A teenage dancer becomes concerned when her skin is covered with a red and lumpy rash which is discovered to be the result of a parasitic worm called Trichinella spiralis that she contracted from eating a sandwich with undercooked pork at a picnic. A retiree gets scabies from staying in a dusty hospital after his knee surgery.
93"Cold Blooded Killers"June 23, 2010 (2010-06-23)201
A 9 year old hockey player gets struck with an Acanthamoeba brain infection which causes him fall comatose. A computer programmer gets extreme Plasmodium falciparum malaria and sufferers from post-malarial neurological symptoms two weeks after an apparent recovery. A Chinese marathon runner contracts visceral leishmaniasis, which destroys his spleen.
104"Lurkers"July 7, 2010 (2010-07-07)204
Cryptosporidium contaminated water causes a toddler to suffer from severe vomiting and diarrhea. A deadly amoeba known as Balamuthia mandrillaris kills a firefighter who suffered from AIDS. A rare, vicious tapeworm almost detaches the retina in a teenage girl, partially destroying vision in her left eye. Tests reveal the tapeworm was Taenia crassiceps, which she picked up when she failed to wash hands after gardening during lunch.
115"Flesh Eaters"July 14, 2010 (2010-07-14)205
A teenage college student from Austin, Texas gets a strange wound that slowly grows and oozes after a trip to South America that turns out to be leishmaniasis. In 1994, a teenage animal volunteer suffers from a hookworm on her breast when a kitten scratches her on the chest. In 1991, an elderly couple deal with a strange rash that randomly appears and vanishes that turns out to be caused by the Gnathostoma roundworm they picked up from raw catfish during a trip to Africa.
126"Stowaways"July 28, 2010 (2010-07-28)207
A 53-year-old carpenter gets infected with the Japanese lung fluke, which causes him to have trouble breathing, from eating live crabs in a Chinese restaurant. In 1996, an Irish bike rider develops a rash on her groin and upper thighs caused by Schistosoma haematobium, which almost gave her bladder cancer. An African-American guidance counselor, who was an army veteran, develops an insatiable appetite, unusual weight loss, and abdominal pain that turns out to be Ascaris lumbricoides, which he picked up from eating contaminated food while serving in the army.
137"Breeders"August 4, 2010 (2010-08-04)206
In 2005, a 16-year-old boy gets a maggot in his eye, making it impossible for him to see clearly. A Portuguese construction worker deals with a grapefruit sized hydatid cyst caused by Echinococcus granulosus in his pelvis that causes him severe pain. In 1995, a 9 year old girl gets infected with Giardia lamblia, which gives her severe stomach cramps and diarrhea.
148"Double Agents"August 11, 2010 (2010-08-11)208
This episode covers examples of organisms that have been used in medicine, but also exist as parasites in nature. In 1973, a teenage peace volunteer in the Himalayas discovers that he has a young leech living in his nose after drinking fresh water from a pond where the leech was living in. In 1994, a British nature-loving landscaper who suffers from debilitating allergies deliberately infects himself with hookworms during a vacation to Africa to help relieve his symptoms. A 6 year old girl on vacation in South Africa gets a maggot in her foot.
159"Homegrown Enemies"August 18, 2010 (2010-08-18)209
A middle-aged man who has been caring for his ailing elderly mother gets babesiosis from walking barefoot to the mailbox. Since he lost his spleen from cancer, he gets severe diarrhea, in addition to fever, fatigue, and night sweats. An active, busy middle-aged woman experiences stomach cramps, explosive diarrhea, lightheadedness, and blurred vision from the Toxocara canis worm, which she probably got from contaminated food. A 57-year-old mother of five children suffers nausea, loss of appetite, muscle spasms, and vomiting caused by the Strongyloides worms damaging her intestines, which she might have picked up from being in contact with infected soil. Because of steroids she took for her asthma problems, her body became more vulnerable to the parasitic worms.
1610"Shape Shifters"August 25, 2010 (2010-08-25)210
In 1997, a 7-year-old girl suffers headaches and seizures from a pork tapeworm after being adopted at the age of three from Nepal, a developing Indian nation in the Himalayas. A 45-year-old machinist and welder suffers blurry and double vision, leaving him partially blind in his left eye, caused by a raccoon roundworm that he picked up from turkey hunting. Also in 1997, a 45-year-old anesthesiologist, along with 28 other anesthesiologists from 3 different counties, suffer severe stomach cramps and crippling diarrhea from Cyclospora gastroenteritis that was contracted after eating unwashed raspberries in a luxury restaurant. (Note: At the time when this episode was shot, people and restaurants were not washing raspberries due to the fact that water pressure causes the berries to break apart).

Season 3 (2012)Edit

No. in
TitleOriginal air dateProd.
171"My Child Will Only Eat Cat Food"October 5, 2012 (2012-10-05)306
A toddler suddenly starts worrying her parents when she loses appetite for the foods she normally eats. Then, she starts craving salt and starts to eat cat food, but becomes stunted in her growth. After the little girl develops a strange rash, her parents learn that she has been infected by the Toxocara canis parasite. A middle-aged executive of a company had been living a healthy life, until he suddenly starts feeling pain in his abdomen. Initially, it seems he simply has a colon condition called diverticulitis. However, the abdominal cramps return and become so intense that they force him to go to the hospital and get surgery. There, the man discovers that his colon has been invaded by a pathogenic form of Escherichia coli. An older married couple is celebrating for their planned future, when suddenly, they both have flu-like symptoms. When the doctor discovers swollen lymph nodes on them both, the couple learn that they have been infected by the bubonic plague. The wife recovers faster than the husband, who has both of his legs amputated due to developing gangrene.
182"Something's Eating My Son Inside Out"October 12, 2012 (2012-10-12)305
A teenage boy has been enjoying his summer vacation, but after a swim in a lake, he starts complaining of nasal pain, and fever. At first, he appears to have sinusitis. The boy soon develops a swollen eye, loose teeth and pieces of rotten flesh start to drop off of his nose. It turns out that he has a weakened immune system, and that he was infected with a rare, flesh-eating bacterium known as Chromobacterium violaceum. A young model and actress has been living happily with her husband. When she breastfeeds her baby daughter, though, the young mother feels pain and even notices blood on herself. These symptoms are apparently due to a breast condition called mastitis. Although this clears up, she develops pain and numbness in her limbs, itchiness on her chest, headaches, and fatigue. Her doctors and husband doubt the young model/actress' condition, but a dream and surgery confirm that her illness has been caused by a fungal infection in her breast implants have black mold caused by the common fungus Aspergillus niger. A teenage college student has been enjoying college life, until she suddenly feels chest pain. Her breathing becomes more difficult and painful. Initially, she appears to have walking pneumonia, but antibiotics fail to treat her. Her doctor soon learns that the girl's lungs have been infected by a deadly yeast known as Blastomyces dermatitidis.
193"My Face Eating Parasite"October 19, 2012 (2012-10-19)304
A young man and his girlfriend have been enjoying life together, traveling in South America. During their trip, the man suddenly discovers what appears to be a pimple on his face. It seems minor at first, but his face becomes swollen, and the pimple becomes an oozing wound. Soon, the man also starts having bumps in his throat, and thus soreness in that area and lesions on his back. It turns out that he has been suffering from mucocutaneous leishmaniasis. A young man working at a homeless shelter suddenly feels sharp pain in his back. It appears to be a simple back injury, but the pain is extremely sharp and spreads to his hands and arms. He also starts to develop a generalized vasculitis. After many tests, it becomes clear that he has rat-bite fever, caused by Streptobacillus moniliformis which was contracted from rats while cleaning out storage containers at the homeless shelter. A school-aged boy suddenly develops a headache after spending time at a friend's house. At first, it does not appear to be an issue, but the boy's pain spreads to most of his body and he is found completely unconscious. It turns out to be valley fever and dies from it.
204"My Daughter is Losing Her Mind"October 26, 2012 (2012-10-26)301
A young part-time student has been living happily with her new husband, when suddenly, she feels a throbbing headache. Initially, she appears to have the flu, then meningitis. Soon, though, she starts experiencing hallucinations. Doctors start to believe that she is schizophrenic, but it turns out she has Anti-NMDA receptor encephalitis, caused by a teratoma. An eight-year-old boy suddenly starts worrying his parents when he comes down with a stomachache and vomits. It appears to be simple food poisoning, but soon, the boy begins experiencing intense pain and swelling in his legs. It soon becomes clear that he has been suffering from viral rhabdomyolysis, a disease in which the influenza A virus destroys muscle cells. Because of this, the boy had the highest CPK levels ever recorded, but manages to survive despite this frightening condition. A self-employed plumber was taking night shifts when he starts vomiting. He attempts to hide his condition and just deal with it, but the next thing he does is starts misspelling common words. It is suspected that he has stomach cancer. However, further examinations indicate that the man has actually been infected by the Blastocystis hominis parasite.
215"Something's Eating My Dreams"November 2, 2012 (2012-11-02)308
A teenage girl has been enjoying her life of gymnastics and nature, when she suddenly receives a scratch on her hand. The problem seems minor, but the scratch fails to heal and becomes several lesions, which also spread to her eyes. The infection appears to be caused by methicillin-resistant Staphylococcus aureus, but it turns out that she has been infected by Mycobacterium marinum, that she contracted from her aquarium. A middle-aged man suddenly feels as if he is choking and coughs hard. Initially, it appears to be a case of pneumonia, but after a surgery to fix his spine, he develops stabbing pain in his throat. The coughing returns, and it turns out that he did, indeed, swallow a can tab, which me manages to successfully expel after nearly choking to death. A young man suddenly starts complaining of itchiness in his body. He develops a headache, nausea, body aches, and an inability to urinate. Tests show that the man has developed meningitis from Angiostrongylus cantonensis.
226"A Monster's Taking My Baby"November 9, 2012 (2012-11-09)302
A middle school teacher has been having a healthy pregnancy until suddenly, she starts experiencing abdominal cramps and diarrhea. It initially appears to be a case of the flu, but she soon starts bleeding during episodes. At this point, the young woman appears to have hemorrhoids, which progressively worsen. Tests show that she has been infected by Cryptosporidium hominis. A retired schoolteacher enjoys his retirement with his wife, when suddenly, he feels a lack of appetite for his favorite food. It does not appear to be an issue at first, but his appetite continues to decline, and he starts coughing frequently. His coughing fits worsens to the point where breathing becomes incredibly difficult. It appears to be pneumonia, but it turns out that a pea has been lodged in his lung. A young truck driver has been fairly healthy, when suddenly, discovers a strange speck in his vision. Later, he develops pain, irritation, and blurry vision in his right eye. It turns out that he has had a pork tapeworm in his right eye.
237"I Coughed Up Worms!"November 16, 2012 (2012-11-16)303
A young mother expecting her second child suddenly comes down with a stuffy nose and itchy throat. They appear to be typical flu symptoms, but she still feels feverish and soon starts coughing. Her breathing deteriorates to the point where she cannot breathe on her own anymore. It turns out that the young woman has developed an Acinetobacter baumannii infection she caught in a previous hospital through a ventilator. An energetic college student has been healthy, until she suddenly feels like she can't get enough oxygen and starts wheezing. She develops bouts of coughing so bad that she even coughs up worms. The student learns that she has been infected by the worm Ascaris lumbricoides the whole time. A teenage girl living in the countryside suddenly gets headaches. At first, it appears to be from stress, but she soon becomes irritable, has seizures, mood swings and develops triple vision. Only when it is too late (as a result of the incompetence of the medical staff) does it becomes clear that the teenager has died from rabies.
248"My Brain Has Been Hijacked"November 23, 2012 (2012-11-23)309
A baby boy born prematurely alarms his parents when he suddenly comes down with a fever. Soon, he also starts resisting food and coughs severely to the point of coughing up blood. It is revealed that the baby has swallowed a button battery, which has burned a hole in his esophagus. A young, newly independent university student suddenly gets a headache, which persists longer than she is used to. Next, she experiences audible hallucinations, twitching of her head, confusion over her age, and even grand mal seizures. As she rests in preparation for a brain surgery, the young woman suddenly yells, then passes out. It turns out that she has an abscess in her brain caused by a Streptococcus milleri infection from her tongue piercing. A mother/wife has been enjoying a vacation with her family, until she suddenly gets a headache. As her condition progresses, she also experiences a fever; cloudy, foul-smelling urine; dizziness and disorientation, body aches, and even petechiae on her legs. Her doctor discovers that the woman has been suffering from dengue fever the whole time.
259"You Left What Inside Me?"November 30, 2012 (2012-11-30)310
A little girl's health begins to deteriorate when she suddenly comes down with a fever. She then develops reddish spots on her body, stops breathing on her own, and even suffers kidney and liver failure. A spinal tap reveals that the little girl has meningococcal disease, which causes her to have her limbs amputated. A home contractor has been relatively healthy, until he suddenly begins to gain weight in his abdominal area, which turns out to be caused by a large tumor. After removal of the tumor, the man feels excruciating pain that spreads from his abdomen to his lower back and chest. Initially, it appears to be part of his recovery process, but an x-ray shows that a retractor has been left in his body after the surgery. In 2010, a young baseball star's life is cut short by headaches, vomiting, seizures and death from amoebic meningitis.
2610"Killer in my Neck"December 7, 2012 (2012-12-07)307
A young aspiring artist suddenly comes down with flu-like symptoms and a swollen face. To make matters worse, his eyes are yellow, he has trouble breathing, and one of his eyes protrude strangely. It turns out that he has Lemierre's syndrome. An active girl's life is put on hold when she starts feeling fatigue and out of breath. Later, she also starts experiencing extreme joint pain, and she gets diagnosed with Lyme disease. However, further testing shows that the girl has babesiosis, in addition to chronic Lyme disease. An active middle-aged woman becomes concerned when she suddenly feels lumps in her chest. After getting them removed, she then starts experiencing bleeding from her right breast. After getting that taken care of, though, she feels a growing lump in her right breast, which turns out to be two surgical sponges.

Season 4 (2013)Edit

No. in
TitleOriginal air dateProd.
US viewers
271"The Flesh-eating Monster"September 30, 2013 (2013-09-30)401N/A
A 7-year-old girl contracts the bubonic plague and suffers a 107 fever, vomiting, painful buboes, and seizures; a yoga instructor finds out that what she thought was influenza is actually necrotizing fasciitis caused by Streptococcus intermedius and Peptostreptococcus; a state wrestling champion contracts angiostrongyliasis.
282"There's a Worm in My Eye"October 7, 2013 (2013-10-07)404N/A
A two-year-old boy suffers vomiting, loss of appetite and major intestinal damage after swallowing 8 magnetic beads; a teenage ballerina suffers painful migraines, ear pain, headaches, and muscle cramps for nearly 5 years due to the West Nile virus; a preacher gets infected with Loa loa worms in his eye.
293"Choosing Between Life and Limb"October 11, 2013 (2013-10-11)405N/A
A newly engaged Illinois man mysteriously collapses and suffers organ failure and gangrene from Legionnaire's disease, which requires doctors to amputate his limbs; a perky animal-loving eight-year-old girl survives rabies – a disease with a 99% fatality rate; a college freshmen almost goes blind from a bout of Acanthamoeba keratitis.
304"It Came From a Tick..."October 18, 2013 (2013-10-18)402N/A
A mother-of-four struggles with a mysterious lump that emerges on the neck of her two-year-old daughter, which doctors discover is caused by tularemia, a deadly bacterial infection caused by Francisella tularensis transmitted by the American dog tick; a mother suffers from debilitation, nausea, abdominal pain, and jaundice for four years finally find out her symptoms have been caused by Fasciola hepatica; a 5-year-old develops intense body pains and almost stops breathing due to Guillain–Barré syndrome which was triggered by the flu virus.
315"My Husband is Hallucinating"October 25, 2013 (2013-10-25)403N/A
A small-town boy's summer fun is cut short by a life-threatening Neisseria meningitidis infection; an oil rig worker and daredevil experiences sensitivity to light, muscle pain and horrifying hallucinations from Trichinella spiralis after eating bear meat; a former beauty queen suffers an extreme case of asthma for one year from a nasal packing contaminated with Aspergillus niger fungi.
326"Dying Abroad"December 11, 2013 (2013-12-11)407N/A
A Peace Corps volunteer traveling to Burkina Faso suddenly suffers from excruciating bouts of nausea and diarrhea from Entamoeba histolytica; a young woman almost suffocates due to hantavirus pulmonary syndrome caused by the Sin Nombre virus which she picked up from breathing in dust contaminated with mouse feces while cleaning up; an 18-month-old boy gets infected with Baylisascaris procyonis worms which cause his brain to swell.
337"Maggots Are Eating Me"December 11, 2013 (2013-12-11)408N/A
A teenager caught in the 2011 Joplin tornado in Missouri is recovering in the hospital when he suddenly suffers from a life-threatening case of mucormycosis; a couple on a safari adventure in Africa get maggots from a tumbu fly under their skin; a man suffers coughing fits, severe headaches, vertigo, and violent episodes (including chasing one of his sons with a wrench and punching another in the face) before doctors discover the fungus Cryptococcus neoformans has infected his brain.
348"A Deadly Swim"December 18, 2013 (2013-12-18)409N/A
A teenage boy develops stomach pains, starts vomiting blood and fecal matter, and has nausea from accidentally swallowing a bristle from a grill brush, which got lodged in his intestines; in 2011, a 16-year-old girl who swam in a Florida river experiences a headache, fever, vomiting, mental confusion, unusual behavior and dies from Naegleria fowleri; an industrial painter has difficulties breathing and walking from Blastomyces dermatitidis.
359"My Christmas From Hell"December 18, 2013 (2013-12-18)4060.71
A special episode with three cases that happened during the holidays – A newlywed woman gets a constant pain in her scalp from botfly larvae; a Virginia man gets sharp back pains and develops a hole in his heart from Streptococcus viridans; a female business consultant and part-time photographer gets valley fever.
3610"I Almost Killed My Baby"December 18, 2013 (2013-12-18)410N/A
A newborn baby develops hydrocephalus from a parasitic disease called toxoplasmosis, which was contracted from his mother; an 11-year-old boy suffers headaches, vomiting, uncontrollably speaking gibberish, and seizures from being infected with the eastern equine encephalitis virus; a teenager living on a farm suffers a severe cough and fever from Paragonimus kellicotti.

Season 5 (2014)Edit

No. in
TitleOriginal air dateProd.
US viewers
371"My Daughter's Going Crazy"October 9, 2014 (2014-10-09)501N/A
A teenage girl begins having strange mood swings from anti-NMDA receptor encephalitis; an elderly mother gets chills, hand numbness, wrist pain, and oozing blisters from Vibrio vulnificus she got from being pricked by a crab while making a stew; an athletic military veteran from the Afghan war competing in reality shows returns home from Fiji feeling hotness, a pinching sensation in her arms and toes, and hallucinations from rat lungworm she got from eating a slug in a reality show in the jungle.
382"West Nile Attack!"October 16, 2014 (2014-10-16)502N/A
A 6-year-old boy suffers a nasty cough, fever, and vomiting from valley fever; a newlywed husband becomes paralyzed from the waist down due to the West Nile virus; an international journalist suffers extreme stomach cramps, night sweats, chills, nausea, and fever from Entamoeba histolytica.
393"A Menace in My Own Backyard"October 23, 2014 (2014-10-23)5030.51
A 23-year-old athlete/construction worker suffers multiple grand mal seizures and high fevers from eastern equine encephalitis; a hard-edged tough guy suffers severe stomach pains and loss of appetite from accidentally swallowing a grill bristle; a 17-year-old cheerleader who recently got her driver's license suffers a swollen, itchy eye and excruciating eye pains from Acanthamoeba keratitis she got from contact lenses.
404"The Killer in the Lake"November 6, 2014 (2014-11-06)505N/A
A contractor gets hit in the head with a tool, and later starts getting a pounding headache, dizziness, spotty vision, and nausea from having a nail punctured into his brain; a football player in college gets extreme headaches, a stuffy nose, and blurred vision from Aspergillus fungi entering his brain; in 2012, an 8-year-old boy suffers constant vomiting, fatigue, seizures, and eventually dies from amoebic meningitis after being infected with Naegleria fowleri.
415"There's a Worm Crawling in My What?"November 13, 2014 (2014-11-13)506N/A
A Canadian science-lover and traveler suffers a painful lesion caused by botfly larvae; a video game programmer gets suffers from constant vomiting and coughing. When doctors find a large mass in his chest, it is discovered that he has histoplasmosis, which was contracted from inhaling bat droppings in a cave; a 15-year-old girl gets an extremely sore throat, a headache, nausea, and body pains from Lemierre's syndrome.
426"Vampire Parasites Attack"November 20, 2014 (2014-11-20)507N/A
A war veteran suffers fatigue, high fevers, night sweats, strange rashes, bloody urine and jaundice from babesiosis; a 15-month-old baby girl suffers fever, dry mouth, vomiting and bloody diarrhea from E. coli O157:H7, whom she got from drinking raw milk; a biologist suffers extreme fatigue, back pains, anxiety, and vertigo from Aspergillus-contaminated breast implants.
437"A Holiday in the Hospital"December 4, 2014 (2014-12-04)5040.31
The second episode of the series to be Christmas-themed – a saleswoman gets a stabbing headaches and a constant burning sensation in her right eye from a Dirofilaria immitis worm that is in her eye; a store manager gets stomach pains, fatigue, nausea, vomiting and even a constantly moving stomach from a surgical sponge being left and forming a hole in his colon; a grandmother working in the forest service gets abdomen pains, fatigue, and pneumonia from Strongyloides worms invading her intestines.
448"My Body Is Rotting"December 11, 2014 (2014-12-11)5080.94
A teenager gets coughing, shoulder pains, dizziness, and nausea from Cryptococcus gattii fungi invading her lungs; a saleswoman gets extreme pain in her breast from a brown recluse spider (Loxosceles reclusa) bite; a religious youth organizer gets swelling of multiple parts of the body over the course of three years from the Loa loa worm.
459"The Brain Colonizer"December 11, 2014 (2014-12-11)5100.86
A Canadian 13-month-old toddler gets breathing difficulties and suffers painful burns to his oesophagus from a button battery that he swallowed (for what the doctors originally thought was a coin); a college freshwoman gets migraines, nausea, on-and-off blindness, hallucination-like partial seizures, repulsive taste and two lesions in her brain from infection with Taenia solium; in 2008, a 6-year-old girl gets a headache, a rash, high fevers, and dies from Rocky Mountain spotted fever.
4610"I Smell Like Death"December 18, 2014 (2014-12-18)5090.69
A 29-year-old man gets tooth pain and almost dies of necrotizing fasciitis caused by the bacteria Streptococcus intermedius and Peptostreptococcus; a female financial adviser gets fatigue, joint pain, mental confusion, hair loss, and muscle weakness for over three years from Lyme disease; a 7-year-old boy gets a loss of appetite, abdominal pains, a fever, diarrhea, constant vomiting, and weight loss from Cryptosporidium.

Season 6 (2015)Edit

No. in
TitleOriginal air dateProd.
US viewers
471"There's Something Living In My Knee!?"October 29, 2015 (2015-10-29)6030.64
A 4-year-old boy comes down with respiratory illness symptoms and literally drowns in his own mucus, being a victim of an outbreak of the Enterovirus D68 virus; a 7-year old scrapes his knee on a rock at the beach, but when his father puts a liquid bandage on it, it causes it to swell the size of an orange – then, his mother squeezes the wound and finds a sea snail (Littorina scutulata) inside; a college student experiences loss of appetite, fatigue, fever, jaundice, and repetitive nightmares that turn into a reality from getting infected with malaria caused by the Plasmodium falciparum parasite after returning from a trip to Ghana.
482"Help! My Son is a Leper"October 29, 2015 (2015-10-29)6040.51
An athlete gets headaches, stomach pains, breathing difficulties, and a liver mass from Entamoeba histolytica from a trip to Nicaragua; a teenager develops a leg welt and then gets fatigue and red spots on his body over the course of several years and when the spots open, the doctors discover he has leprosy from coming into contact with an infected nine-banded armadillo (Dasypus novemcinctus). A woman suffers severe headaches, nausea, vomiting, and seizures from Exserohilum rostratum fungi invading her brain and spinal column.
493"My Vacation From Hell"November 5, 2015 (2015-11-05)6020.51
During a fishing vacation, a soccer coach goes into septic shock from Vibrio vulnificus necrotizing fasciitis after banging his ankle on a barnacle; a 7-year-old girl gets facial tics, bouts of anxiety, and turns suicidal after a streptococcal brain infection; a makeup artist gets severe stomach cramps and watery diarrhea from Giardia lamblia.
504"There's a Fungus in My What!?!"November 5, 2015 (2015-11-05)6010.47
A newlywed woman gets extreme headaches, memory problems, sinus pressure, and painful rashes, while her husband gets endless nosebleeds, breathing problems, and brain fog, both from Aspergillus when the mold invaded their new home; a councilman loses his spleen to visceral leishmaniasis; a 6-year-old gets a fever, red spots, a swollen mouth, loss of appetite, leg weakness, and breathing difficulties from rat bite fever caused by Streptobacillus moniliformis.
515"Worms Are Eating My Lungs"November 12, 2015 (2015-11-12)6060.44
An 11-month-old boy experiences wheezing and vomiting after swallowing a button battery; a landscaper becomes infected with Paragonimus kellicotti; a female boxer gets a severe headache, a 105 fever, and impaired vision from cat scratch fever caused by Bartonella henselae.
526"An Amoeba is Eating My Brain"November 19, 2015 (2015-11-19)6100.51
A 2-year-old girl experiences severe pain, trouble breathing, and vomiting from a bark scorpion sting; a neuroscientist experiences multi-organ failure and nearly dies from a leptospirosis infection that he caught while swimming in a lake in Hawaii; a 20-year-old woman suffers from severe vomiting, extreme headaches, twitching and a strange crawling sensation in her head that turns out to be a brain infection caused by Balamuthia mandrillaris and dies from it.
537"The Eyeball Eater"December 3, 2015 (2015-12-03)6070.43
A young college student contracts Acanthamoeba keratitis from sleeping in her contact lenses; an infant becomes temporarily paralyzed and almost dies from accidental ingestion of soil that contained the most deadly toxin known to science, botulinum toxin. A new mother has extreme pain from a piece of gauze that was left inside her abdomen during a C-section.
548"The Backyard Killer"December 10, 2015 (2015-12-10)6080.42
A California teenager nearly suffocates from hantavirus pulmonary syndrome; a Hawaiian personal trainer suffers years of excruciating neuropathic pain from ciguatera poisoning caused by Gambierdiscus toxicus toxins; a Michigan health worker nearly dies from babesiosis.
559"All I Got For Christmas Is Brain Surgery"December 17, 2015 (2015-12-17)6050.53
The third episode of the series to be Christmas-themed – A baby is having problems controlling the left side of her body, along with multiple miniature seizures before doctors discover the right side of her brain is malformed due to a Cytomegalovirus infection; a PR executive suffers a year-long ailment that turns out to be a cyst caused by Echinococcus granulosus tapeworms infecting her spleen; A mechanic thinks he's only got a concussion after a minor accident, only for doctors to discover a nail stuck in his skull; seizures ruin a schoolteacher's Thanksgiving, and when they worsen around Christmas, doctors discover that she has neurocysticercosis caused by a taenia solium cyst.
5610"They Hijacked My Eyeball"December 22, 2015 (2015-12-22)6090.50

A 13-year-old boy gets a cut on his leg that nearly leads to amputation when it becomes infected with Staphylococcus aureus, causing necrotizing fasciitis; a couple move into their new home, but over the course of three years, the man suffers a spreading/oozing rash, poor coordination, body aches, breathing difficulties, and weight loss, while his girlfriend suffers memory loss, fatigue, and suicidal depression, both from chronic low grade carbon monoxide poisoning; an 8-year-old girl from Hawaii gets a growing mass in her eye from Toxocara canis.

Note: This episode was originally scheduled to air on December 10, but was pulled and aired on December 22 instead.

Season 7 (2016)Edit

No. in
TitleOriginal air dateProd.
US viewers
571"Backyard Killers"October 6, 2016 (2016-10-06)706N/A
This episode looks back at three cases from past episodes: a teenage boy with a grill bristle in his intestines (A Deadly Swim); another teenage boy with leprosy (Help! My Son is a Leper); and a teenage girl whose lungs are afflicted with Cryptococcus gattii fungi (My Body Is Rotting).
582"I Have a WHAT in My WHAT?"October 13, 2016 (2016-10-13)701N/A
A infant becomes totally paralyzed after accidental exposure to botulinum toxin; a Texas man develops severe pain in his scrotum for which doctors think is an ingrown hair, but it actually turns out to be botfly larvae which infected him while he urinated outdoors in Costa Rica; a Florida model/dentist is confounded by her mysterious weight gain, and over the course of a year she suffers continuing weight gain, blurry vision, crippling hand pain, and muscle weakness before it is discovered her breast implants are contaminated with Aspergillus fungi.
593"There's Something Living in My Hand!"October 20, 2016 (2016-10-20)702N/A
An Idaho 17-year-old football player is struck with a sore throat, breathing difficulties/lung pain, confusion, kidney failure and even tackles his own mother from Group A streptococcus bacteria infecting his blood; an Illinois mother of three kids develops an itchy eye which leads to face numbness, loss of depth perception and blindness as the result of an Acanthamoeba keratitis infection; a dockmaster develops crippling pain in his hand from a Mycobacterium marinum infection along with pimples on his palm from barnacles growing in his hand.
604"My Wife is Rotting"October 27, 2016 (2016-10-27)703N/A
In 2016, during a family vacation cruise, a Louisiana 2-year-old is restless and drools, which leads to vomiting, fever, seizures, kidney and liver failure due to abrin poisoning after accidentally eating a bead from a necklace made of the rosary pea plant on a trip to Jamaica; a California mother-of-two develops a bloated and descended stomach and colon, a body-wide rash, fluid in her abdomen and meningitis from valley fever caused by Coccidioides immitis; a 6-year-old boy suffers a headache, vomiting, blindness and bizarre neurological symptoms which include crossed eyes and increased intracranial pressure that ultimately costs him his life. Only when it is too late is it discovered that he was infected with the Balamuthia mandrillaris amoeba.
615"My Hands Are Falling Off"November 3, 2016 (2016-11-03)704N/A
A Canadian woman suffers a piercing pain in her throat and vomiting from accidentally swallowing a grill bristle (for which she thought was a sprig of rosemary) which got caught in her throat during a barbecue; an Arizona retired firefighter vacationing in Belize develops growing and eventually opening purple bumps on his limbs, lethargy, and hand pain from cutaneous leishmaniasis; a Nebraska 14-year-old girl is struck with swollen lymph nodes in her neck, dizziness, fatigue, blackouts, and body pain from Tularemia.
626"My Evil Twin is Driving Me Crazy"November 10, 2016 (2016-11-10)705N/A
A four-year-old Pennsylvania boy gets a runny nose with red discharge, stomach pains, pale skin and extreme pain from accidentally putting a button battery up his nose; an Idaho college student gets a cut on her knee, but then develops agonizing leg pain followed by septic shock from an Aeromonas hydrophila infection; a Pennsylvania woman has strange outbursts and appears to lose her mind from a teratoma growing on her ovary giving her Anti-NMDA receptor encephalitis.
637"Holiday from Hell"December 15, 2016 (2016-12-15)707N/A
The show's fourth Christmas-themed episode, and the second episode of the series that looks back at three past cases, including: a baby whose brain was infected with Cytomegalovirus in utero (All I Got For Christmas Is Brain Surgery); a woman whose eye is infected with the worm Dirofilaria immitis (A Holiday in the Hospital); and a man who has a surgical sponge left in his colon (also A Holiday in the Hospital).

Season 8 (2017)Edit

No. in
TitleOriginal air dateProd.
US viewers
641"Help! I'm Being Eaten Alive"October 15, 2017 (2017-10-15)8020.52
A young girl travelling abroad to Colombia with her family is brought to the hospital with stabbing pains in her scalp due to worms from the New World screwworm fly; a mother of two falls ill with excruciating period cramps, foul smelling urine, green discharge, vaginitis, and a burning sensation due to a surgical probe left behind during a previous surgery; a man develops dizziness, chills and fever, arm pain, and rashes from vibrio vulnificus.
652"My Brain Is Under Attack"October 15, 2017 (2017-10-15)8050.47
A young man develops severe headaches, loss of concentration, vomiting, hydrocephalus and falls into a coma from a brain infection caused by taenia solium; a university student gets a sore throat, fevers, loss of balance, and organ failure from lemierre's syndrome, caused by Fusobacterium necrophorum; a young woman suffers from emotional distress, foggy memory, chest pains, bloody vomit and extreme pain from babesiosis.
663"My Second Brain Is Killing Me"October 22, 2017 (2017-10-22)8010.49
A man experiences a strange swelling in his eye along with extreme pain from a warble fly larva growing in his eyelid; a young girl is struck down with cold symptoms/lethargy, vomiting, paralysis, shortness of breath and acute flaccid myelitis caused by enterovirus D68; a woman develops a strange sense of taste and restlessness which is originally diagnosed as a urinary tract infection, but later develops hallucinations, paranoia and seizures from Anti-NMDA receptor encephalitis caused by a football-sized teratoma growing in her ovary. Her teratoma contained hair, bone, esophageal tissue, and brain tissue.
674"The Monster in My Mouth"October 29, 2017 (2017-10-29)8060.37
An infant suffers from cold symptoms, vomiting, seizures and encephalitis from a brain infection caused by the powassan virus which he got from a tick bite; a biology professor investigates rough patches in his mouth, determining a parasite to be at fault, which he finds to be gongylonema pulchrum, one of the rarest human parasites on the planet; a Canadian family man suffers acute bloody diarrhea from a damaged colon which he cures with steroids, but soon suffers from delirium, meningitis, and thousands of holes throughout his stomach and small intestine from a body-wide infection caused by strongyloides larvae, which he tragically dies from. Afterwards, his daughter is discovered to harbor the worms as well, but recovers after she is treated with ivermectin for a few days.
685"There's a Maggot in My Head"November 5, 2017 (2017-11-05)803N/A
A new mother gets extreme abdominal pains, low blood pressure and septic shock from a group A streptococcus infection that leads to the removal of her colon, uterus and ovaries, and she develops purpura fulminans, which requires amputation of all her limbs; an 8-year-old boy gets a small, raised, oozing scratch on his head, swollen lymph nodes on both sides of his head, pain and a crawling sensation in his head from a botfly larva that burrowed into his scalp from a trip to Costa Rica; a 25-year-old man is struck down by fatigue, body pain, muscle paralysis, and meningitis from rat lungworm disease.
696"Something Is Eating My Baby"November 12, 2017 (2017-11-12)804N/A
A young Hawaiian boy is struck down with high fever, eye discharge, blisters in his mouth, body-wide rashes, peeling skin, labored breathing, pneumonia and shock from Stevens-Johnson syndrome/toxic epidermal necrolysis from having a reaction to ibuprofen or an earlier infection, resulting in him developing photophobia and losing 60% of his skin; a woman develops bouts of back/joint pain, spreading rashes and skin lesions over the span of 6 years from filariasis; a Canadian 14-month-old toddler develops teething, a 101 fever, loss of motor control, encephalitis, and blindness caused by baylisascaris procyonis.
707"Braced for Death"November 19, 2017 (2017-11-19)807N/A
A teenager develops a headache, fevers, swollen lips, a burning sensation in her throat, vomiting, blotchy, pus-filled sores in and on her mouth, weakness, loss of appetite, an enlarged spleen and weight loss from a nickel allergy from her braces; an athlete is struck down with chills, high fevers, excruciating headaches, hallucinations, liver/kidney failure and pneumonia from leptospirosis, which he got from swimming in a lake in Costa Rica; a young woman vomits blood and loses a concerning amount of weight from entamoeba histolytica.
718"I Can't Stop Coughing Up Blood"November 26, 2017 (2017-11-26)808N/A
A adventurous family man is struck down with chest tightness, shortness of breath, bloody sputum, labored breathing and a growing mass in his lung from paragonimus kellicotti; a young newlywed man develops fevers, headaches, spreading rashes, ocular hypertension, fatigue and loss of concentration from the zika virus, which he contracted from his honeymoon to Jamaica; a man is struck down with stabbing abdominal pains from accidentally swallowing a toothpick from a club sandwich he ate, which got lodged in his intestine.
729"The Organ Shredder"December 3, 2017 (2017-12-03)809N/A
A Virginia infant develops a loss of appetite, loss of motor control, and weakness from ingestion of the botulinum toxin, causing infant botulism; a New York man gets blurry vision, eye pain and sensitivity to light due to acanthamoeba keratitis which he contracted from a vacation to the Cayman Islands; a nursing assistant is struck down with coughing, excrutiating abdominal pains, brown urine and an inflamed gallbladder from infection by cystoisospora belli, which she got from treating a victim of the 2010 Haiti earthquake.
7310"My Lungs Are Rotting"December 10, 2017 (2017-12-10)811N/A
A Florida woman gets painful, oozing blisters on her face, chest, arms and legs and rashes from toxocara worms; a California baby develops high fevers, an inability to swallow, wheezing/coughing and difficulty breathing from swallowing a penny which got embedded in his esophagus for at least 2 weeks; a Wisconsin man is struck down with chest pain, extreme coughing, an inflamed lung, pale skin and shortness of breath from blastomyces dermatitidis, as part of the blastomycosis outbreak of the Wolf River.
7411"All I Got For Christmas"December 17, 2017 (2017-12-17)810N/A
This episode, as well as being the series' fifth Christmas-themed episode, is also the third episode to look back at three cases from previous episodes, including: a man with a nail in his head (The Killer in the Lake), a boy with a snail shell in his knee (There's Something Living in My Knee!?), and an elderly man with a pea in his lung (A Monster's Taking My Baby).
7512"There Are Twigs In My Urine"December 17, 2017 (2017-12-17)812N/A
A California traveler develops itchy bumps on his legs and a growth on his wrist from cutaneous leishmaniasis; a nurse is struck down with abdominal pains, dizziness, and bloody twig-like pieces in her urine over the span of several years from schistosomiasis; a pregnant store manager suffers chills, severe headaches, night sweats, and abdominal pains from infection with listeria, which forces doctors to deliver her baby 6 months premature.

Monsters Inside Me: Extra DeadlyEdit

Monsters Inside Me: Extra Deadly is a spin-off of Monsters Inside Me that airs alongside the original show. It features reruns of episodes from Seasons 6-onwards but adds extra onscreen trivia that appears when a condition, infection, or symptom is discussed. Aside from that, it also features onscreen trivia of various casual objects found in the episode, like when it was first invented. The spin-off started in 2016; the first season is composed of altered versions of all Season 6 episodes with added trivia, and would usually air before a brand new episode from Season 7 of the original show premiered. The second season, which started in 2017, is set to air altered versions of all Season 7 episodes and previously-aired episodes of Season 8 with added trivia, and will premiere before brand-new episodes of Season 8 of the original show premiere.

Season 1: 2016Edit

# Title Original air date Viewers
1"There's a Fungus in My What!?!"October 13, 2016 (2016-10-13)N/A
2"There's Something Living in My Knee!?"October 20, 2016 (2016-10-20)N/A
3"My Vacation From Hell"October 27, 2016 (2016-10-27)N/A
4"Help! My Son is a Leper"November 3, 2016 (2016-11-03)N/A
5"Worms Are Eating My Lungs"November 10, 2016 (2016-11-10)N/A
6"The Eyeball Eater"November 17, 2016 (2016-11-17)N/A
7"The Backyard Killer"December 1, 2016 (2016-12-01)N/A
8"They Hijacked My Eyeball"December 1, 2016 (2016-12-01)N/A
9"An Amoeba is Eating My Brain"December 8, 2016 (2016-12-08)N/A
10"All I Got For Christmas Is Brain Surgery"December 15, 2016 (2016-12-15)N/A

Season 2: 2017Edit

# Title Original air date Viewers
1"I Have a WHAT in My WHAT?"October 15, 2017 (2017-10-15)N/A
2"There's Something Living in My Hand!"October 22, 2017 (2017-10-22)N/A
3"My Wife is Rotting"October 29, 2017 (2017-10-29)N/A
4"My Hands Are Falling Off"November 5, 2017 (2017-11-05)N/A
5"My Evil Twin is Driving Me Crazy"November 12, 2017 (2017-11-12)N/A
6"My Second Brain Is Killing Me"November 19, 2017 (2017-11-19)N/A
7"Help! I'm Being Eaten Alive"November 26, 2017 (2017-11-26)N/A
8"There's a Maggot in My Head"December 3, 2017 (2017-12-03)N/A
9"Something Is Eating My Baby"December 10, 2017 (2017-12-10)N/A
10"My Brain Is Under Attack"December 17, 2017 (2017-12-17)N/A


Mike Hale of The New York Times said that "there’s science amid the frightening stories" and said that the series "really grossed him out."[2]

Anne Louise Bannon of Common Sense Media said that "parents need to know that there is a lot of gross stuff in the series and the show has good educational content except for the tips on how to protect yourself from parasites because the information is vague".[3]

Neil Genzlinger of The New York Times wrote "Forget 'American Horror Story.' For several years now the scariest show on television has been Animal Planet’s 'Monsters Inside Me,' which recreates real cases of bizarre, life-threatening infections." [4]


In 2013, a UK spin-off called Bugs, Bites & Parasites premiered on Discovery Channel UK.[citation needed]


  1. ^ "Expect the Unexpected in an All-New Season of Animal Planet's "Monsters Inside Me"". The Futon Critic. September 11, 2012. Retrieved October 12, 2012.
  2. ^ Hale, Mike (June 30, 2009). "The Enemy Within: Wrigglies From Hell". The New York Times. Retrieved July 15, 2009.
  3. ^ Bannon, Anne Louise. "Monsters Inside Me Review". Common Sense Media. Retrieved August 18, 2009.
  4. ^ Genzlinger, Neil. "10 Unconventional Halloween Diversions". New York Times. New York Times. Retrieved October 22, 2015.

External linksEdit