Premature ejaculation (PE) occurs when a man experiences orgasm and expels semen soon after sexual activity and with minimal penile stimulation. It has also been called early ejaculation, rapid ejaculation, rapid climax, premature climax and (historically) ejaculatio praecox. There is no uniform cut-off defining "premature", but a consensus of experts at the International Society for Sexual Medicine endorsed a definition of around one minute after penetration. The International Classification of Diseases (ICD-10) applies a cut-off of 15 seconds from the beginning of sexual intercourse.
Although men with premature ejaculation describe feeling that they have less control over ejaculating, it is not clear if that is true, and many or most average men also report that they wish they could last longer. Men's typical ejaculatory latency is approximately 4–8 minutes. The opposite condition is delayed ejaculation.
Men with PE often report emotional and relationship distress, and some avoid pursuing sexual relationships because of PE-related embarrassment. Compared with men, women consider PE less of a problem, but several studies show that the condition also causes female partners distress.
The causes of premature ejaculation are unclear. Many theories have been suggested, including that PE was the result of masturbating quickly during adolescence to avoid being caught, performance anxiety, passive-aggressiveness or having too little sex; but there is little evidence to support any of these theories.
Several physiological mechanisms have been hypothesized to contribute to causing premature ejaculation, including serotonin receptors, a genetic predisposition, elevated penile sensitivity and nerve conduction atypicalities.
The nucleus paragigantocellularis of the brain has been identified as having involvement in ejaculatory control. Scientists have long suspected a genetic link to certain forms of premature ejaculation. However, studies have been inconclusive in isolating the gene responsible for lifelong PE. Other researchers have noted that men who have premature ejaculation have a faster neurological response in the pelvic muscles.
The physical process of ejaculation requires two actions: emission and expulsion. The emission is the first phase. It involves deposition of fluid from the ampullary vas deferens, seminal vesicles and prostate gland into the posterior urethra. The second phase is the expulsion phase. It involves closure of bladder neck, followed by the rhythmic contractions of the urethra by pelvic-perineal and bulbospongiosus muscle and intermittent relaxation of external urethral sphincters.
Sympathetic motor neurons control the emission phase of ejaculation reflex, and expulsion phase is executed by somatic and autonomic motor neurons. These motor neurons are located in the thoracolumbar and lumbosacral spinal cord and are activated in a coordinated manner when sufficient sensory input to reach the ejaculatory threshold has entered the central nervous system.
Current evidence supports an average intravaginal ejaculation latency time (IELT) of six and a half minutes in 18- to 30-year-olds. If the disorder is defined as an IELT percentile below 2.5, then premature ejaculation could be suggested by an IELT of less than about two minutes. Nevertheless, it is possible that men with abnormally low IELTs could be satisfied with their performance and do not report a lack of control. Likewise, those with higher IELTs may consider themselves premature ejaculators, suffer from detrimental side effects normally associated with premature ejaculation, and even benefit from treatment.
Premature ejaculation as a medical problem under evidence-based criteria generated by the International Society for Sexual Medicine in 2014 as being not the result of a nonsexual mental illness, a problem in a given relationship, or caused by medication, by the person ejaculating around a minute after penetration and before the person wants to ejaculate, occurring for a duration longer than 6 months and happening almost every time, and causing significant distress for person. These factors are identified by talking with the person, not through any diagnostic test.
Several treatments have been tested for treating premature ejaculation. A combination of medication and non-medication treatments is often the most effective method.
Many men attempt to treat themselves for premature ejaculation by trying to distract themselves, such as by trying to focus their attention away from the sexual stimulation. There is little evidence to indicate that it is effective and it tends to detract from the sexual fulfilment of both partners. Other self-treatments include thrusting more slowly, withdrawing the penis altogether, purposefully ejaculating before sexual intercourse, and using more than one condom. Using more than one condom is not recommended as the friction will often lead to breakage. Some men report these to have been helpful.
By the 21st century, most men with premature ejaculation could cure themselves, either on their own or with a partner, using self-help resources, and only those with unusually severe problems had to consult sex therapists, who cured 75 to 80 percent.
Freudian theory postulated that rapid ejaculation was a symptom of underlying neurosis. It stated that the man suffers unconscious hostility toward women, so he ejaculates rapidly, which satisfies him but frustrates his lover, who is unlikely to experience orgasm that quickly. Freudians claimed that premature ejaculation could be cured using psychoanalysis. But even years of psychoanalysis accomplished little, if anything, in curing premature ejaculation.
There is no evidence that men with premature ejaculation harbor unusual hostility toward women.
Several techniques have been developed and applied by sex therapists, including Kegel exercises (to strengthen the muscles of the pelvic floor) and Masters and Johnson's "stop-start technique" (to desensitize the man's responses) and "squeeze technique" (to reduce excessive arousal).:27
To treat premature ejaculation, Masters and Johnson developed the "squeeze technique", based on the Semans technique developed by Dr. James Semans in 1956. Men were instructed to pay close attention to their arousal pattern and learn to recognize how they felt shortly before their "point of no return", the moment ejaculation felt imminent and inevitable. Sensing it, they were to signal their partner, who squeezed the head of the penis between thumb and index finger, suppressing the ejaculatory reflex and allowing the man to last longer.
The squeeze technique worked, but many couples found it cumbersome. From the 1970s to the 1990s, sex therapists refined the Masters and Johnson approach, largely abandoning the squeeze technique and focused on a simpler and more effective technique called the "stop-start" technique. During intercourse, as the man senses he is approaching climax, both partners stop moving and remain still until the man's feelings of ejaculatory inevitability subside, at which point, they are free to resume active intercourse.
These techniques appear to work for around half of people, in the short term studies that had been done as of 2017.:27
Drugs that increase serotonin signalling in the brain slow ejaculation and have been used successfully to treat PE. These include selective serotonin reuptake inhibitors (SSRIs), such as paroxetine or dapoxetine, as well as clomipramine. Ejaculatory delay typically begins within a week of beginning medication. The treatments increase the ejaculatory delay to 6–20 times greater than before medication. Men often report satisfaction with treatment by medication, and many discontinue it within a year. However, SSRIs can cause various types of sexual dysfunction such as anorgasmia, erectile dysfunction, and diminished libido.
Desensitizing topical medications like lidocaine that are applied to the tip and shaft of the penis can also be used. These are applied "as needed", 10–15 minutes before sexual activity and have fewer potential systemic side effects as compared to pills. Use of topicals is sometimes disliked due to the reduction of sensation in the penis as well as for the partner (due to the medication rubbing onto the partner).
Two different surgeries are available to permanently treat premature ejaculation: selective dorsal neurectomy (SDN) and glans penis augmentation using a hyaluronan gel. Both treatments were developed in South Korea and are fairly common in this country, with 72.9% of Korean urologists considering SDN as a safe and efficient treatment. Preliminary studies have suggested that both are relatively safe and effective, but due to a lack of large, multicenter, randomized-control trials with long-term follow-up, the International Society of Sexual Medicine has been unable to endorse selective dorsal neurectomy and glans penis augmentation as options for treatment. The role of surgery in the management of premature ejaculation will remain unclear until further studies have been completed.
Premature ejaculation is a prevalent sexual dysfunction in men; however, because of the variability in time required to ejaculate and in partners' desired duration of sex, exact prevalence rates of PE are difficult to determine. In the "Sex in America" surveys (1999 and 2008), University of Chicago researchers found that between adolescence and age 59, approximately 30% of men reported having experienced PE at least once during the previous 12 months, whereas about 10 percent reported erectile dysfunction (ED). Although ED is men's most prevalent sex problem after age 60, and may be more prevalent than PE overall according to some estimates, premature ejaculation remains a significant issue that, according to the survey, affects 28 percent of men age 65–74, and 22 percent of men age 75–85. Other studies report PE prevalence ranging from 3 percent to 41 percent of men over 18, but the great majority estimate a prevalence of 20 to 30 percent—making PE a very common sex problem.
There is a common misconception that younger men are more likely to suffer premature ejaculation and that its frequency decreases with age. Prevalence studies have indicated, however, that rates of PE are constant across age groups.
Male mammals ejaculate quickly during intercourse, prompting some biologists to speculate that rapid ejaculation had evolved into men's genetic makeup to increase their chances of passing their genes.
Ejaculatory control issues have been documented for more than 1,500 years. The Kamasutra, the 4th century BCE Indian sex handbook, declares: "Women love the man whose sexual energy lasts a long time, but they resent a man whose energy ends quickly because he stops before they reach a climax."[non-primary source needed] Waldinger summarizes professional perspectives from early in the twentieth century.
Sex researcher Alfred Kinsey did not consider rapid ejaculation a problem, but viewed it as a sign of "masculine vigor" that could not always be cured. The belief that it should be considered a disease rather than a normal variation has also been disputed by some modern researchers.
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According to [Dr. John Mulhall], when we talk casually about premature ejaculation ... we're usually talking about what the medical community would consider 'premature-ejaculatory-like syndrome,' or simply 'rapid ejaculation.' ... Mulhall says it comes down to whether the guy lasts long enough. If his partner is made wholly replete in 90 seconds, then a man who lasts 95 seconds can be fine. But if another guy lasts 15 minutes, and that's not cutting it, then it's a problem and can be considered rapid.