Sexual Dysfunction
medical conditions

Sexual Dysfunction

Explore the available health information, treatment context, and integrative evidence for Sexual Dysfunction.

Background
  • Sexual dysfunction or sexual malfunction is defined as difficulty during any stage of the sexual act (which includes desire, arousal, orgasm, and resolution) that prevents the individual or couple from enjoying sexual activity.
  • Sexual dysfunction includes desire, arousal, orgasmic, and sexual pain disorders, including dyspareunia (painful intercourse) and vaginismus (involuntary spasm of the muscles of the vaginal wall that interferes with intercourse). Estimates of the number of women who have sexual dysfunctions range from 19-50% of the normal population, and increase to 68-75% when sexual dissatisfaction or problems (not dysfunctional in nature) are included. One in 10 men in the world has erectile dysfunction, and approximately 30 million men in the United States have erectile dysfunction.
  • Sexual difficulties can begin early in an individual's sex life or they may develop after an individual has previously experienced enjoyable and satisfying sex. Sexual dysfunctions are more common in the early adult years, with the majority of people seeking care for such conditions during their late 20s through their 30s. A problem may develop gradually over time, or may occur suddenly as a total or partial inability to participate in one or more stages of the sexual act.
  • The causes of sexual difficulties can be physical, psychological, or both.
  • Sexual dysfunction is more common in people who abuse alcohol and drugs. It is also more likely to occur in people suffering from health conditions such as circulatory disorders and lack of vaginal lubrication (common in women with hormonal changes such as pre-menstrual syndrome or menopause), diabetes, and degenerative neurological disorders. Sexual dysfunctions are also common among patients with chronic renal (kidney) failure. Ongoing psychological problems, difficulty maintaining relationships, or ongoing stress with the current sexual partner can also interfere with sexual function. The incidence increases again in the geriatric population, typically with gradual onset of symptoms that are associated most commonly with medical causes, such as circulatory disorders, of sexual dysfunction.
  • For both men and women, conditions of sexual dysfunction may appear 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.
Signs and Symptoms
  • Signs and symptoms of sexual dysfunction between males and females vary.
  • Men and women: Men and women with sexual dysfunction may experience: a lack of interest in sex (loss of libido); inability to feel aroused; and pain with intercourse (much less common in men than women).
  • Men: Men with sexual dysfunction may experience: an inability to attain an erection; inability to maintain an erection adequately for intercourse; delayed or absent ejaculation despite adequate stimulation; and an inability to control timing of ejaculation.
  • Women: Women with sexual dysfunction may experience: an inability to relax vaginal muscles enough to allow intercourse; inadequate vaginal lubrication before and during intercourse; an inability to attain orgasm; and a burning pain on the vulva or in the vagina with contact to those areas.
Diagnosis
  • The majority of the time, medical evaluation and lab tests will not reveal a physical cause. However, testosterone is the hormone most responsible for creating sexual desire in both men and women. It may be useful to check testosterone levels, particularly in men who have ISD. Blood for such lab tests in men should be drawn before 10:00 a.m., when male hormone levels are at their highest. Interviews with a specialist in sex therapy are more likely to reveal possible causes.
  • The diagnostic criteria (DSM-IV-TR) for female sexual arousal disorders are: persistent or recurrent inability to attain, or to maintain until completion of the sexual activity, an adequate lubrication-swelling response of sexual excitement; the dysfunction causes marked distress or interpersonal difficulty; and the sexual dysfunction is not caused by another primary disorder (except another sexual dysfunction) and is not due exclusively to the direct effects of a substance (such a drug of abuse, a medication) or a general medical condition on the body.
  • Diagnostic criteria for premature ejaculation DSM-IV-TR (American Psychiatric Association) are: persistent or recurrent ejaculation with minimal sexual stimulation before, upon, or shortly after penetration and occurring before the person wishes it. Factors that affect duration of the excitement phase, such as age, novelty of the sexual partner or situation, and recent frequency of sexual activity, are taken into consideration; the disturbance causes distress or interpersonal difficulty; and the premature ejaculation is not due exclusively to the direct effects of a substance (such as withdrawal from opioids).
Complications
  • Persistent sexual dysfunction may cause depression in susceptible individuals. The importance of the sexual disorder for both the individual and their partner needs to be determined. Sexual dysfunction that is not addressed adequately may lead to conflicts or potential breakups.
  • When both partners have low sexual desire, the issue of sexual interest level will not be problematic in the relationship. Low sexual desire, however, may be a barometer of the emotional health of the relationship. In other cases where there is an excellent and loving relationship, low sexual desire may cause a partner to repeatedly feel hurt and rejected, leading to eventual feelings of resentment and promoting eventual emotional distance.
  • Sex is something that, for most couples, either bonds their relationship closer together, or it is something that becomes a wedge that gradually drives them apart. When one partner is significantly less interested in sex than their companion, and this has become a source of conflict and friction, it is recommended by healthcare providers that professional help be sought before the relationship becomes further strained.
Treatment
  • Treatment for sexual dysfunction must be individualized to the factors that may be inhibiting sexual interest, desire, and pleasure. Often, there may be several such factors. Some couples will need relationship enhancement work or marital therapy prior to focusing directly on enhancing sexual activity.
  • Psychological counseling: Psychological counseling can help with sexual dysfunction in men and women caused by stress, anxiety, or depression. The individual and their partner may be instructed to visit a sex therapist, psychologist, or psychiatrist with experience in treating sexual problems. Qualified therapists work with couples to reduce tension, improve sexual communication, and create realistic expectations for sex, all of which can improve symptoms of ED. Therapists also help the individual work through issues such as sexual abuse as a child. Psychological therapy may be effective along with medical or surgical treatment.
  • Medications for sexual arousal and desire disorders :
  • Phosphodiesterase-5 inhibitors (PDE-5): Oral medications available to treat erectile dysfunction (ED) and female sexual arousal disorders include sildenafil (Viagra®), tadalafil (Cialis®), and vardenafil (Levitra®). The U.S. Food and Drug Administration (FDA) approved Viagra® in 1998, and it became the first oral medication for ED on the market. Since then, Levitra® and Cialis® have been approved, providing more options for oral therapy. These drugs are chemically known as phosphodiesterase-5 inhibitors (PDE-5). They enhance the effects of nitric oxide, a chemical messenger that relaxes smooth muscles in the penis. This increases the amount of blood flowing into the penis and allows an erection in response to sexual arousal and stimulation. These medications do not automatically produce an erection. Instead they allow an erection to occur after physical and psychological stimulation and arousal. Many men experience improvement in erectile function after taking these medications regardless of the cause of their impotence.
  • Generally, these medications are absorbed and processed rapidly by the body and are usually taken 30 minutes to one hour before intercourse. Cialis® has been reported in clinical trials to stay in the body longer than the others. It promotes erection within 30 minutes and enhances the ability to achieve erection for up to 36 hours.
  • Common side effects of phosphodiesterase inhibitors include headache, reddening of the face and neck (flushing), indigestion, and nasal congestion. These drugs may also cause hypotension or low blood pressure. Cialis® may cause muscle aches and back pain, which usually go away on their own within 48 hours.
  • Medications prescribed for the treatment of erectile dysfunction may cause significant side effects when mixed with certain heart drugs called nitrates, including nitroglycerin (Nitrostat®, Nitro-Bid®), isosorbide mononitrate (Imdur®), and isosorbide dinitrate (Isordil®). Nitrates are often prescribed to reduce chest pain, dilate the blood vessels, and lower blood pressure. Because ED medications also reduce blood pressure, combining these two types of medication can cause a dangerous drop in blood pressure. Experts do not recommend taking sildenafil (Viagra®), vardenafil (Levitra®), or tadalafil (Cialis®) if nitrates are used. If an individual has coronary heart disease (CHD) or has had a heart attack in recent months, be sure to check with a doctor before taking any of these drugs for erectile dysfunction. These drugs should also not be used along with certain medications for high blood pressure called alpha blockers.
  • Bremelanotide: Bremelanotide (formerly PT-141) is a new medication in phase 3 clinical trials for use in treating sexual dysfunction in men (erectile dysfunction or impotence) as well as sexual dysfunction in women (sexual arousal disorder). It is the only known synthetic aphrodisiac. Bremelanotide is called a melanocortin receptor agonist, and unlike Viagra® and other related medications, it does not act upon the vascular system, but directly increases sexual desire by acting on melanocortin receptors in the brain. Melanocortin receptors seem to stimulate sexual desire and arousal. Bremelanotide is a spray introduced nasally. High blood pressure is reported to be a side effect of bremelanotide in sensitive individuals.
  • Eros Therapy®: Eros Therapy® is an FDA-approved device for the treatment of female sexual dysfunction. This small handheld device is used three to four times per week to increase blood flow to the clitoris and external genitalia, which improves clitoral and genital sensitivity, lubrication, and the ability to experience orgasm. It may take several weeks of conditioning before experiencing the benefits of this therapy.
  • Prostaglandin E1 (alprostadil): Two treatments involve using a drug called alprostadil (Muse®, Caverject®, Edex®). Alprostadil is a synthetic version of the hormone prostaglandin E1. This hormone helps relax smooth muscle tissue in the penis (corpus cavernosum), which enhances the blood flow needed for an erection. There are two ways to use alprostadil, including needle-injection therapy and intraurethral (into the urethra) therapy. With needle-injection, a needle is used to inject alprostadil (Caverject®, Edex®) into the base or side of the penis, performed at a doctor's office or hospital. This generally produces an erection in five to 20 minutes that lasts for about an hour. Because the injection goes directly into the spongy cylinders that fill with blood, alprostadil is an effective treatment for many men. And because the needle used is so fine, pain from the injection site is usually minor. Other side effects may include bleeding from the injection, prolonged erection, and formation of fibrous tissue at the injection site. It should not be used more than three times per week, and there must be at least 24 hours (one day) between each dose. The cost per injection can be expensive. Injecting a mixture of alprostadil and other prescribed drugs (including papaverine and phentolamine) may be a less expensive and more effective option. A risk of infection exists at the injection site, especially in immunocompromised individuals such as those with human immunodeficiency virus (HIV). Healthcare professionals recommend using care to protect the individual using Caverject® and their sexual partner, as blood from the injection site after could be a carrier of sexually transmitted diseases, such as HIV or hepatitis.
  • Medicated Urethral System for Erection (Muse®) is a self-administered intraurethral (into the urethra or opening in penis) therapy. It involves using a disposable applicator to insert a tiny suppository, about half the size of a grain of rice, into the tip of the penis. The suppository, placed about two inches into the urethra, is absorbed by erectile tissue in the penis, increasing the blood flow and causing an erection. Although needles are not involved, this method may be painful or uncomfortable. Side effects may include pain, minor bleeding in the urethra, dizziness, and formation of fibrous (scar) tissue. Again, bleeding may occur during the use of this drug, so care should be taken by the individual using Muse® to protect themselves and their sexual partner.
  • Hormone replacement therapy (HRT): Women may benefit from hormone replacement therapy (HRT), which is aimed at restoring hormone levels affected by age (such as in menopause), surgery (such as in a hysterectomy), or hormone dysfunction (such as in premenstrual syndrome or PMS) to normal, thus restoring sexual function. Estrogen, progesterone, and testosterone levels are measured and treated by a doctor. HRT medications include conjugated estrogen (Premarin®) and estrogen/progesterone combinations (Premphase®). Complications of HRT can include an increased risk of developing ovarian and breast cancer and cardiovascular diseases such as stroke and heart attack.
  • For men who have testosterone deficiency, testosterone replacement therapy may be an option. While it is fairly well established that testosterone plays a role in libido (sexual desire), its role in ED remains unclear. ED occurs in men with normal or moderately low levels of testosterone, so it cannot be concluded that testosterone is the primary modulator of erectile function. However, among men diagnosed with hypogonadism, a condition characterized by abnormally low testosterone, erections do improve after testosterone replacement. For these men with ED, testosterone therapy is recommended to restore erectile function.
  • Testosterone replacement therapy has also been recommended as a second-line approach to treatment of ED when prescription medications alone have failed and when prostate cancer has been ruled out. However, testosterone may increase the growth of prostate cancer and is not used in individuals with this disease or an enlarged prostate (benign prostatic hyperplasia or BPH).
  • Vacuum devices: This treatment involves the use of an external vacuum and one or more rubber bands (tension rings). To begin, a hollow plastic tube is placed over the penis. This tube is available by prescription or through various vendors. Then a hand pump is used to create a vacuum in the tube that pulls blood into the penis. Once an adequate erection is achieved (usually one to three minutes), a tension ring is slipped around the base of the penis to maintain the erection. The vacuum device is then removed. The erection typically lasts long enough for a couple to have sexual intercourse. The ring can be left in place for 25-30 minutes. The tension ring is removed after intercourse.
  • Vascular surgery: This treatment is usually reserved for men whose blood flow has been blocked by an injury to the penis or pelvic area. Surgery may also be used to correct erectile dysfunction caused by vascular blockages such as atheroslerosis (hardening of the arteries) or tumors. The goal of this treatment is to correct a blockage of blood flow to the penis so that erections can occur naturally; however, long-term success of this surgery is unclear. Complications are minimal and include abdominal or scrotal pain/swelling and occasional temporary numbness on the top surface of the penis. Abstinence from sexual activity involving the erect penis is recommended for the first six weeks after the operation.
  • Penile implants: This treatment involves surgically placing a device into the two sides of the penis, allowing erection to occur as often and for as long as desired. These implants consist of either an inflatable device or semi-rigid rods made from silicone or polyurethane. This treatment is often expensive and is usually not recommended until other methods have been considered or tried first. Penile implants are also sometimes used to treat Peyronie's disease, a disorder that causes bent or painful erections. As with any surgery, there is a risk of complications such as infection. Most men go home within 24 hours of surgery. Although new penile implant designs are very reliable and may last a lifetime, they can malfunction. For example, in some semi-rigid devices, internal parts can break down over time, leading to a prosthesis malfunction. In inflatable devices, fluid can leak or the valve or pump device can fail. Surgery is necessary to repair or replace a broken implant. Penile implants do not usually affect urination, sex drive, orgasm, or ejaculation.
  • Treatment for sexual pain disorders :
  • Dyspareunia: Dysparenunia is treated by doctors using the following steps: carefully taking a history; carefully examining the pelvis to duplicate as closely as possible the discomfort and to identify a site or source of the pelvic pain; removing the source of pain when possible; and prescribing very large amounts of water-soluble sexual or surgical lubricant during intercourse. Petroleum jelly is discouraged. Moisturizing skin lotion may be used as an alternative lubricant, unless the individual is using a condom or other latex product (lotion may degrade the condom). Lubricant should be liberally applied to both the penis and the orifice to receive the penis. A folded bath towel under the receiving partner's hips helps prevent spillage on bedclothes.
  • It is recommended by healthcare providers to instruct the receiving partner to take the phallus of the penetrating partner in their hand and control insertion, rather than letting the penetrating partner do it.
  • Couples may add pleasant, sexually exciting experiences to their regular interactions, such as bathing together (in which the primary goal is not cleanliness), mutual caressing without intercourse, and using sexual books, pictures, or videos. In couples where a woman is preparing to receive vaginal intercourse, such activities tend to increase both natural lubrication and vaginal dilation, both of which decrease friction and pain.
  • Healthcare providers recommend changing coital positions to one admitting less penetration. In women receiving vaginal penetration, this is recommended for those who have pain on deep penetration because of pelvic injury or disease. Maximum vaginal penetration is achieved when the receiving woman lies on her back with her pelvis rolled up off the bed, compressing her thighs tightly against her chest with her calves over the penetrating partner's shoulders; and minimal penetration occurs when a receiving woman lies on her back with her legs extended flat on the bed and close together while her partner's legs straddle hers. If no penetration is tolerable, the couple may substitute oral sex and masturbation for intercourse.
  • Vaginismus: Physical treatment of the internal spasms may include sensate focus exercises, exploring the vagina through touch, and desensitization with vaginal dilators. Dilating involves inserting objects, usually phallic in shape, into the vagina. In treating the spasms through dilation, the objects used gradually increase in size as the woman progresses. Medical dilators may be obtained online, though they may be expensive. Other options include sex toys (such as dildos or vibrators), peeled cucumber, or simply the individual's own fingers. The addition of personal lubricant can ease insertion.
Prevention
  • Open, informative, and accurate communication regarding sexual issues and body image between parents and their children may prevent children from developing anxiety or guilt about sex and may help them develop a healthy understanding of sexual relationships.
  • Reviewing all medications, both prescription and over-the-counter (OTC), for possible side effects that relate to sexual dysfunction is important. Healthcare professionals recommend talking to a pharmacist or doctor. Avoiding drug and alcohol abuse will also help prevent sexual dysfunction.
  • Couples who are open and honest about their sexual preferences and feelings are more likely to avoid some sexual dysfunction. One partner should, ideally, be able to communicate desires and preferences to the other partner.
  • Individuals who are victims of sexual trauma, such as sexual abuse or rape at any age, are urged to seek psychiatric advice. Individual counseling with an expert in trauma may prove beneficial in allowing sexual abuse victims to overcome sexual difficulties and enjoy voluntary sexual experiences with a chosen partner.
References

Natural Standard developed the above evidence-based information based on a thorough systematic review of the available scientific articles. For comprehensive information about alternative and complementary therapies on the professional level, go to www.naturalstandard.com. Selected references are listed below.

  • American Academy of Family Physicians. . Accessed April 28, 2009.
  • Baldwin DS, Hutchinson J, Donaldson K, et al. Selective serotonin re-uptake inhibitor treatment-emergent sexual dysfunction: randomized double-blind placebo-controlled parallel-group fixed-dose study of a potential adjuvant compound, VML-670. J Psychopharmacol. 2007; [Epub ahead of print]. View Abstract
  • Berner MM, Hagen M, Kriston L. Management of sexual dysfunction due to antipsychotic drug therapy. Cochrane Database Syst Rev. 2007;(1):CD003546. View Abstract
  • Centers for Disease Control and Prevention. . Accessed April 28, 2009.
  • Malatesta VJ. Sexual problems, women and aging: an overview. J Women Aging. 2007;19(1-2):139-54. View Abstract
  • Meston CM, Bradford A. Sexual dysfunctions in women. Annu Rev Clin Psychol. 2007;3:233-56. View Abstract
  • Natural Standard: The Authority on Integrative Medicine. . Copyright © 2009. Accessed April 28, 2009.
  • Palacios S. Androgens and female sexual function. Maturitas. 2007;57(1):61-5. View Abstract
  • Shadiack AM, Sharma SD, Earle DC, et al. Melanocortins in the treatment of male and female sexual dysfunction. Curr Top Med Chem. 2007;7(12):1137-44. View Abstract