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Sexual dysfunction is difficulty experienced by an individual or a couple during any stage of a normal sexual activity, including physical pleasure, desire, preference, arousal or orgasm.
According to the DSM-5, sexual dysfunction requires a person to feel extreme distress and interpersonal strain for a minimum of six months (excluding substance or medication-induced sexual dysfunction).
Sexual dysfunctions can have a profound impact on an individual’s perceived quality of sexual life. The term sexual disorder may not only refer to physical sexual dysfunction, but to paraphilias as well; this is sometimes termed disorder of sexual preference.
A thorough sexual history and assessment of general health and other sexual problems (if any) are very important. Assessing performance anxiety, guilt, stress and worry are integral to the optimal management of sexual dysfunction.
Types
Sexual dysfunction disorders may be classified into four categories: sexual desire disorders, arousal disorders, orgasm disorders and pain disorders. Sexual dysfunction among men and women are specifically studied in the fields of andrology and gynaecology respectively.
Sexual desire disorders
Sexual desire disorders or decreased libido are characterized by a lack of absence for some period of time of sexual desire or libido for sexual activity or of sexual fantasies. The condition ranges from a general lack of sexual desire to a lack of sexual desire for the current partner. The condition may have started after a period of normal sexual functioning or the person may always have had no or low sexual desire.
The causes vary considerably, but include a possible decrease in the production of normal estrogen in women or testosterone in both men and women. Other causes may be aging, fatigue, pregnancy, medications (such as the SSRIs) or psychiatric conditions, such as depression and anxiety. While a number of causes for low sexual desire are often cited, only some of these have ever been the object of empirical research.
Sexual arousal disorders
Sexual arousal disorders were previously known as frigidity in women and impotence in men, though these have now been replaced with less judgmental terms. Impotence is now known as erectile dysfunction, and frigidity has been replaced with a number of terms describing specific problems that can be broken down into four categories as described by the American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders: lack of desire, lack of arousal, pain during intercourse, and lack of orgasm.
For both men and women, these conditions can manifest themselves as an aversion to, and avoidance of, sexual contact with a partner. In men, there may be partial or complete failure to attain or maintain an erection, or a lack of sexual excitement and pleasure in sexual activity.
There may be physiological origins to these disorders, such as decreased blood flow or lack of vaginal lubrication. Chronic disease can also contribute, as well as the nature of the relationship between the partners.
Additionally, the condition postorgasm illness syndrome (POIS) may cause symptoms when aroused, including adrenergic-type presentation; rapid breathing, paraesthesia, palpitations, headaches, aphasia, nausea, itchy eyes, fever, muscle pain and weakness and fatigue.
From the onset of arousal, symptoms can persist for up to a week in patients.
The aetiology of this condition is unknown; however it is believed to be a pathology of either the immune system or autonomic nervous systems. It is defined as a rare disease by the NIH but the prevalence is unknown. It is not thought to be psychiatric in nature, but it may present as anxiety relating to coital activities and thus may be incorrectly diagnosed as such. There is no known cure or treatment.
Erectile dysfunction
Erectile dysfunction or impotence is a sexual dysfunction characterized by the inability to develop or maintain an erection of the penis. There are various underlying causes, such as damage to the nervi erigentes which prevents or delays erection, or diabetes as well as cardiovascular disease, which simply decreases blood flow to the tissue in the penis, many of which are medically reversible.
The causes of erectile dysfunction may be psychological or physical. Psychological erectile dysfunction can often be helped by almost anything that the patient believes in; there is a very strong placebo effect. Physical damage is much more severe. One leading physical cause of ED is continual or severe damage taken to the nervi erigentes. These nerves course besides the prostate arising from the sacral plexus and can be damaged in prostatic and colorectal surgeries.
Diseases are also common causes of erectile dysfunctional; especially in men. Diseases such as cardiovascular disease, multiple sclerosis, kidney failure, vascular disease and spinal cord injury are the source of erectile dysfunction.
Due to its embarrassing nature and the shame felt by sufferers, the subject was taboo for a long time, and is the subject of many urban legends. Folk remedies have long been advocated, with some being advertised widely since the 1930s. The introduction of perhaps the first pharmacologically effective remedy for impotence, sildenafil (trade name Viagra), in the 1990s caused a wave of public attention, propelled in part by the news-worthiness of stories about it and heavy advertising.
It is estimated that around 30 million men in the United States and 152 million men worldwide suffer from erectile dysfunction. However, social stigma, low health literacy and social taboos lead to under reporting which makes an accurate prevalence rate hard to determine.
The Latin term impotentia coeundi describes simple inability to insert the penis into the vagina. It is now mostly replaced by more precise terms.
Premature ejaculation
Premature ejaculation is when ejaculation occurs before the partner achieves orgasm, or a mutually satisfactory length of time has passed during intercourse. There is no correct length of time for intercourse to last, but generally, premature ejaculation is thought to occur when ejaculation occurs in under two minutes from the time of the insertion of the penis.For a diagnosis, the patient must have a chronic history of premature ejaculation, poor ejaculatory control, and the problem must cause feelings of dissatisfaction as well as distress the patient, the partner or both.
Historically attributed to psychological causes, new theories suggest that premature ejaculation may have an underlying neurobiological cause which may lead to rapid ejaculation.
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Orgasm disorders
Orgasm disorders, specifically anorgasmia, present as persistent delays or absence of orgasm following a normal sexual excitement phase in at least 75% of sexual encounters. The disorder can have physical, psychological, or pharmacological origins. SSRI antidepressants are a common pharmaceutical culprit, as they can delay orgasm or eliminate it entirely. A common physiological culprit of anorgasmia is menopause, where one in three women report problems obtaining an orgasm during sexual stimulation following menopause.
Further to this there is what is called post-orgasm disorders, which would better categorize the condition: postorgasm illness syndrome (see post-orgasm disorders section).
Sexual pain disorders
Sexual pain disorders affect women almost exclusively and are also known as dyspareunia (painful intercourse) or vaginismus (an involuntary spasm of the muscles of the vaginal wall that interferes with intercourse).
Dyspareunia may be caused by insufficient lubrication (vaginal dryness) in women. Poor lubrication may result from insufficient excitement and stimulation, or from hormonal changes caused by menopause, pregnancy, or breastfeeding. Irritation from contraceptive creams and foams can also cause dryness, as can fear and anxiety about sex.
It is unclear exactly what causes vaginismus, but it is thought that past sexual trauma (such as rape or abuse) may play a role. Another female sexual pain disorder is called vulvodynia or vulvar vestibulitis. In this condition, women experience burning pain during sex which seems to be related to problems with the skin in the vulvar and vaginal areas. The cause is unknown.
Post-orgasmic diseases
Post-orgasmic diseases cause symptoms shortly after orgasm or ejaculation. Post-coital tristesse (PCT) is a feeling of melancholy and anxiety after sexual intercourse that lasts for up to two hours. Sexual headaches occur in the skull and neck during sexual activity, including masturbation, arousal or orgasm.
In men, postorgasmic illness syndrome (POIS) causes severe muscle pain throughout the body and other symptoms immediately following ejaculation. The symptoms last for up to a week. Some doctors speculate that the frequency of POIS “in the population may be greater than has been reported in the academic literature”,and that many POIS sufferers are undiagnosed.
Symptomology of POIS may present as adrenergic-type presentation; rapid breathing, paraesthesia, palpitations, headaches, aphasia, nausea, itchy eyes, fever, muscle pain and weakness and fatigue.
From the onset of orgasm, symptoms can persist for up to a week in patients.
The aetiology of this condition is unknown, however it is believed to be a pathology of either the immune system or autonomic nervous systems. It is defined as a rare disease by the NIH but the prevalence is unknown. It is not thought to be psychiatric in nature, but it may present as anxiety relating to coital activities and thus may be incorrectly diagnosed as such. There is no known cure or treatment.
Dhat syndrome is another condition which occurs in men. It is a culture-bound syndrome which causes anxious and dysphoric mood after sex, but is distinct from the low-mood and concentration problems (acute aphasia) seen in postorgasm illness syndrome.
Pelvic floor dysfunction
Pelvic floor dysfunction can be an underlying cause of sexual dysfunction in both women and men, and is treatable by physical therapy.
Uncommon sexual disorders in men
Erectile dysfunction from vascular disease is usually seen only amongst elderly individuals who have atherosclerosis. Vascular disease is common in individuals who have diabetes, peripheral vascular disease, hypertension and those who smoke. Any time blood flow to the penis is impaired, erectile dysfunction is the end result.
Hormone deficiency is a relatively rare cause of erectile dysfunction. In individuals with testicular failure like in Klinefelter syndrome, or those who have had radiation therapy, chemotherapy or childhood exposure to mumps virus, the testes may fail and not produce testosterone. Other hormonal causes of erectile failure include brain tumors, hyperthyroidism, hypothyroidism or disorders of the adrenal gland.
Structural abnormalities of the penis like Peyronie’s disease can make sexual intercourse difficult. The disease is characterized by thick fibrous bands in the penis which leads to a deformed-looking penis.
Drugs are also a cause of erectile dysfunction. Individuals who take drugs to lower blood pressure or use antipsychotics, antidepressants, sedatives, narcotics, antacids or alcohol can have problems with sexual function and loss of libido.
Priapism is a painful erection that occurs for several hours and occurs in the absence of sexual stimulation. This condition develops when blood gets trapped in the penis and is unable to drain out. If the condition is not promptly treated, it can lead to severe scarring and permanent loss of erectile function. The disorder occurs in young men and children. Individuals with sickle-cell disease and those who abuse certain medications can often develop this disorder.
Causes
There are many factors which may result in a person experiencing a sexual dysfunction. These may result from emotional or physical causes. Emotional factors include interpersonal or psychological problems, which can be the result of depression, sexual fears or guilt, past sexual trauma, and sexual disorders,among others.
Sexual dysfunction is especially common among people who have anxiety disorders. Ordinary anxiousness can obviously cause erectile dysfunction in men without psychiatric problems, but clinically diagnosable disorders such as panic disorder commonly cause avoidance of intercourse and premature ejaculation. Pain during intercourse is often a comorbidity of anxiety disorders among women.
Physical factors that can lead to sexual dysfunctions include the use of drugs, such as alcohol, nicotine, narcotics, stimulants, antihypertensives, antihistamines, and some psychotherapeutic drugs. For women, almost any physiological change that affects the reproductive system—premenstrual syndrome, pregnancy and the postpartum period, menopause—can have an adverse effect on libido. Injuries to the back may also impact sexual activity, as can problems with an enlarged prostate gland, problems with blood supply, or nerve damage (as in sexual dysfunction after spinal cord injuries). Diseases such as diabetic neuropathy, multiple sclerosis, tumors, and, rarely, tertiary syphilis may also impact the activity, as could the failure of various organ systems (such as the heart and lungs), endocrine disorders (thyroid, pituitary, or adrenal gland problems), hormonal deficiencies (low testosterone, other androgens, or estrogen) and some birth defects.
Pelvic floor dysfunction is also a physical and underlying cause of many sexual dysfunctions.
In the context of heterosexual relationships, one of the main reasons for the decline in sexual activity among these couples is the male partner experiencing erectile dysfunction. This can be very distressing for the male partner, causing poor body image, and it can also be a major source of low desire for these men. In aging women, it is natural for the vagina to narrow and become atrophied. If a woman has not been participating in sexual activity regularly (in particular, activities involving vaginal penetration) with her partner, if she does decide to engage in penetrative intercourse, she will not be able to immediately accommodate a penis without risking pain or injury.This can turn into a vicious cycle, often leading to female sexual dysfunction.
According to Emily Wentzell, American culture has anti-aging sentiments that have caused sexual dysfunction to become “an illness that needs treatment” instead of viewing it as the natural part of the aging process it is. Not all cultures seek treatment; for example, a population of men living in Mexico often accepts erectile dysfunction as a normal part of their maturing sexuality.
Female sexual dysfunction
Several theories have looked at female sexual dysfunction, from medical to psychological perspectives. Three social psychological theories include: the self-perception theory, the overjustification hypothesis, and the insufficient justification hypothesis:
Self-perception theory: people make attributions about their own attitudes, feelings, and behaviours by relying on their observations of external behaviours and the circumstances in which those behaviours occur
Overjustification hypothesis: when an external reward is given to a person for performing an intrinsically rewarding activity, the person’s intrinsic interest will decrease
Insufficient justification: based on the classic cognitive dissonance theory (inconsistency between two cognitions or between a cognition and a behavior will create discomfort), this theory states that people will alter one of the cognitions or behaviours to restore consistency and reduce distress
The importance of how a woman perceives her behavior should not be underestimated. Many women perceived sex as a chore as opposed to a pleasurable experience, and they tend to consider themselves sexually inadequate, which in turn does not motivate them to engage in sexual activity. Several factors influence a women’s perception of her sexual life. These can include: race, her gender, ethnicity, educational background, socioeconomic status, sexual orientation, financial resources, culture, and religion. Cultural differences are also present in how women view menopause and its impact on health, self-image, and sexuality. A study has found that African American women are the most optimistic about menopausal life; Caucasian women are the most anxious, Asian women are the most inhibited about their symptoms, and Hispanic women are the most stoic.
About one third of the women experienced sexual dysfunction, which may lead to women’s loss of confidence in their sexual lives. Since these women had sexual problems, their sexual lives with their partners became a burden without pleasure, and eventually, they may completely lose interest in sexual activity. Some of the women found it hard to be aroused mentally; however, some had physical problems. Several factors can affect female dysfunction, such as situations in which women do not trust their sex partners. The environment where sex occurs is crucial, since being in an extremely public or extremely private place may make some women feel uncomfortable. Inability to concentrate on the sexual activity due to a bad mood or burdens from work may also cause a woman’s sexual dysfunction. Other factors include physical discomfort or difficulty in achieving arousal, which could be caused by aging or changes in the body’s condition.
Menopause
The female sexual response system is complex and even today, not fully understood. The most prevalent of female sexual dysfunctions that have been linked to menopause include lack of desire and libido; these are predominantly associated with hormonal physiology. Specifically, it is the decline in serum estrogens that causes these changes in sexual functioning. Androgen depletion may also play a role, but currently this is less clear. The hormonal changes that take place during the menopausal transition have been suggested to affect women’s sexual response through several mechanisms, some more conclusive than others.
Aging in women
Whether or not aging directly affects women’s sexual functioning during menopause is another area of controversy. However, many studies, including Hayes and Dennerstein’s critical review, have demonstrated that aging has a powerful impact on sexual function and dysfunction in women, specifically in the areas of desire, sexual interest, and frequency of orgasm. In addition, Dennerstien and colleagues found that the primary predictor of sexual response throughout menopause is prior sexual functioning. This means that it is important to understand how the physiological changes in men and women can affect their sexual desire. Despite the seemingly negative impact that menopause can have on sexuality and sexual functioning, sexual confidence and well-being can improve with age and menopausal status. Furthermore, the impact that a relationship status can have on quality of life is often underestimated.
Testosterone, along with its metabolite dihydrotestosterone, is extremely important to normal sexual functioning in men and women. Dihydrotestosterone is the most prevalent androgen in both men and women. Testosterone levels in women at age 60 are, on average, about half of what they were before the women were 40. Although this decline is gradual for most women, those who’ve undergone bilateral oophorectomy experience a sudden drop in testosterone levels; this is because the ovaries produce 40% of the body’s circulating testosterone.
Sexual desire has been related to three separate components: drive, beliefs and values, and motivation. Particularly in postmenopausal women, drive fades and is no longer the initial step in a woman’s sexual response.
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