Vaginismus is a condition in which involuntary muscle spasm prevents vaginal penetration. This often results in pain with attempts at sex. Often it begins when sexual intercourse is first attempted.
|Synonyms||Vaginism, genito-pelvic pain disorder|
|Symptoms||Pain with sex|
|Usual onset||With first sexual intercourse|
|Causes||Fear of pain|
|Risk factors||History of sexual assault, endometriosis, vaginitis, prior episiotomy|
|Diagnostic method||Based on the symptoms and examination|
|Treatment||Behavior therapy, gradual vaginal dilatation|
|Prognosis||Generally good with treatment|
|Frequency||0.5% of women|
The underlying cause is generally a fear that penetration will hurt. Risk factors include a history of sexual assault, endometriosis, vaginitis, or a prior episiotomy. Diagnosis is based on the symptoms and examination. It requires there to be no anatomical or physical problems and a desire for penetration on the part of the women.
Treatment may include behavior therapy such as graduated exposure therapy and gradual vaginal dilatation. Surgery is not generally indicated. Botulinum toxin is being studied. About 0.5% of women are affected. Outcomes are generally good with treatment.
Signs and symptomsEdit
Severity as well as the pain during penetration varies between women.
A woman is said to have primary vaginismus when she is unable to have penetrative sex or experience vaginal penetration without pain. It is commonly discovered in teenage girls and women in their early twenties, as this is when many girls and young women first attempt to use tampons, have penetrative sex, or undergo a Pap smear. Women with vaginismus may be unaware of the condition until they attempt vaginal penetration. A woman may be unaware of the reasons for their condition.
A few of the main factors that may contribute to primary vaginismus include:
- a condition called vulvar vestibulitis syndrome, more or less synonymous with focal vaginitis, a so-called sub-clinical inflammation, in which no pain is perceived until some form of penetration is attempted
- urinary tract infections
- vaginal yeast infections
- sexual abuse, rape, other sexual assault, or attempted sexual abuse or assault
- knowledge of (or witnessing) sexual or physical abuse of others, without being personally abused
- domestic violence or similar conflict in the early home environment
- fear of pain associated with penetration, particularly the popular misconception of "breaking" the hymen upon the first attempt at penetration, or the idea that vaginal penetration will inevitably hurt the first time it occurs
- chronic pain conditions and harm-avoidance behaviour
- any physically invasive trauma (not necessarily involving or even near the genitals)
- generalized anxiety
- negative emotional reaction towards sexual stimulation, e.g. disgust both at a deliberate level and also at a more implicit level
- strict conservative moral education, which also can elicit negative emotions
Vaginismus has been classified by Lamont according to the severity of the condition. Lamont describes four degrees of vaginismus: In first degree vaginismus, the patient has spasm of the pelvic floor that can be relieved with reassurance. In second degree, the spasm is present but maintained throughout the pelvis even with reassurance. In third degree, the patient elevates the buttocks to avoid being examined. In fourth degree vaginismus (also known as grade 4 vaginismus), the most severe form of vaginismus, the patient elevates the buttocks, retreats and tightly closes the thighs to avoid examination. Pacik expanded the Lamont classification to include a fifth degree in which the patient experiences a visceral reaction such as sweating, hyperventilation, palpitations, trembling, shaking, nausea, vomiting, losing consciousness, wanting to jump off the table, or attacking the doctor. The Lamont classification continues to be used to the present and allows for a common language among researchers and therapists.
Although the pubococcygeus muscle is commonly thought to be the primary muscle involved in vaginismus, Pacik identified two additionally-involved spastic muscles in treated patients under sedation. These include the entry muscle (bulbocavernosum) and the mid-vaginal muscle (puborectalis). Spasm of the entry muscle accounts for the common complaint that patients often report when trying to have intercourse: "It's like hitting a brick wall".
Secondary vaginismus occurs when a person who has previously been able to achieve penetration develops vaginismus. This may be due to physical causes such as a yeast infection or trauma during childbirth, while in some cases it may be due to psychological causes, or to a combination of causes. The treatment for secondary vaginismus is the same as for primary vaginismus, although, in these cases, previous experience with successful penetration can assist in a more rapid resolution of the condition. Peri-menopausal and menopausal vaginismus, often due to a drying of the vulvar and vaginal tissues as a result of reduced estrogen, may occur as a result of "micro-tears" first causing sexual pain then leading to vaginismus.
Further factors that may contribute to either secondary or primary vaginismus include:
- Fear of losing control
- Not trusting one’s partner
- Self-consciousness about body image
- History of sexual abuse, rape, sexual assault, or attempted sexual abuse or assault
- Misconceptions about sex or unattainable standards for sex from exaggerated sexual materials, such as pornography or abstinence
- Fear of vagina not being wide or deep enough / fear of partner’s penis being too large
- Undiscovered or denied sexuality
A Cochrane review found little high quality evidence regarding the treatment of vaginismus in 2012. Specifically it is unclear if systematic desensitisation is better than other measures including nothing.
According to Ward and Ogden's qualitative study on the experience of vaginismus (1994), the three most common contributing factors to vaginismus are fear of painful sex; the belief that sex is wrong or shameful (often the case with patients who had a strict religious upbringing); and traumatic early childhood experiences (not necessarily sexual in nature).
People with vaginismus are twice as likely to have a history of childhood sexual interference and held less positive attitudes about their sexuality, whereas no correlation was noted for lack of sexual knowledge or (non-sexual) physical abuse.
Often, when faced with a person experiencing painful intercourse, a gynecologist will recommend Kegel exercises and provide some additional lubricants. Strengthening the muscles that unconsciously tighten during vaginismus may be extremely counter-intuitive for some people. Although vaginismus has not been shown to affect a person's ability to produce lubrication, providing additional lubricant can be helpful in achieving successful penetration. This is due to the fact that women may not produce natural lubrication if anxious or in pain. Treatment of vaginismus may involve the use Hegar dilators, (sometimes called vaginal trainers) progressively increasing the size of the dilator inserted into the vagina.
Botulinum toxin A (Botox) has been considered as a treatment option, under the idea of temporarily reducing the hypertonicity of the pelvic floor muscles. Although no random controlled trials have been done with this treatment, experimental studies with small samples have shown it to be effective, with sustained positive results through 10 months. Similar in its mechanism of treatment, lidocaine has also been tried as an experimental option.
Anxiolytics and antidepressants are other pharmacotherapies that have been offered to people in conjunction with other psychotherapy modalities, or if these patients experience high levels of anxiety from their condition. Results from these medications have not been consistent.
True epidemiological studies of vaginismus have not been done, as diagnosis would require painful examinations that such women would most likely avoid. Data available is primarily reported statistics from clinical settings.
A study of vaginismus in people in Morocco and Sweden found a prevalence of 6%. 18-20% of people in British and Australian studies were found to have manifest dyspareunia, while the rate among elderly British people was as low as 2%.
A 1990 study of people presenting to sex therapy clinics found reported vaginismus rates of between 12% and 17%, while a random sampling and structured interview survey conducted in 1994 by National Health and Sexual Life Survey documented 10%-15% of people reported that in the past six months they had experienced pain during intercourse.
The most recent study-based estimates of vaginismus incidence range from 5% to 47% of people presenting for sex therapy or complaining of sexual problems, with significant differences across cultures. It seems likely that a society's expectations of person's sexuality may particularly impact on the people with the condition.
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