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Estrogens are responsible for the maintenance of collagen, elastic fibers, and vasoculature of the urogenital tract, all of which are important in maintaining vaginal structure and functional integrity; they are also important for maintaining vaginal pH and moisture levels, both of which aid in keeping the tissues lubricated and protected. Prolonged estrogen deficiency leads to atrophy, fibrosis, and reduced blood flow to the urogenital tract, which is what causes menopausal symptoms such as vaginal dryness and pain related to sexual activity and/or intercourse. It has been consistently demonstrated that women with lower sexual functioning have lower estradiol levels.
Androgen therapy for hypoactive sexual desire disorder (HSDD) has a small benefit but its safety is not known. It is not approved as a treatment in the United States. If used it is more common among women who have had an oophorectomy or who are in a postmenopausal state. However, like most treatments, this is also controversial. One study found that after a 24-week trial, those women taking androgens had higher scores of sexual desire compared to a placebo group. As with all pharmacological drugs, there are side effects in using androgens, which include hirutism, acne, ploycythaemia, increased high-density lipoproteins, cardiovascular risks, and endometrial hyperplasia is a possibility in women without hysterectomy. Alternative treatments include topical estrogen creams and gels can be applied to the vulva or vagina area to treat vaginal dryness and atrophy.
Although there are no approved pharmaceuticals for addressing female sexual disorders, several are under investigation for their effectiveness. A vacuum device is the only approved medical device for arousal and orgasm disorders. It is designed to increase blood flow to the clitoris and external genitalia. Women experiencing pain with intercourse are often prescribed pain relievers or desensitizing agents. Others are prescribed lubricants and/or hormone therapy. Many patients with female sexual dysfunction are often also referred to a counselor or therapist for psychosocial counseling.
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.
Just as with erectile dysfunction in men, lack of sexual function in women may be treated with hormonal patches or tablets to correct hormonal imbalances, clitoral vacuum pump devices and medication to improve blood flow, sexual sensation and arousal.
Many practitioners today treat both men and women who have SSRI-induced anorgasmia with sildenafil, more commonly known as Viagra. While this approach is known to work well in men with sexual dysfunction, it is only recently that the effectiveness of sildenafil in women with sexual dysfunction is coming to light. A recent study by H. G. Nurnberg et al. showed a complete or very significant reversal of their sexual dysfunction upon taking sildenafil one hour prior to sexual activity. In this study, eight out of the nine women required 50 mg of sildenafil while the 9th woman required 100 mg of sildenafil.
Another option for women who have SSRI-induced anorgasmia is the use of vardenafil. Vardenafil is a type 5 phosphodiesterase (PDE5) inhibitor that facilitates muscle relaxation and improves penile erection in men. However, there is much controversy about the efficiency of the drug used in the reversal of female sexual dysfunction. Vardenafil is similar to sildenafil, but vardenafil is less expensive and may be covered under some insurance plans. A study by A.K. Ashton M.D. has shown that in the case of one particular woman, the effects of vardenafil as opposed to sildenafil have not only been comparable in the effectiveness, but that vardenafil is cheaper and reversal of sexual dysfunction requires a smaller dose. So far, vardenafil has been approved by the Food and Drug administration only for use in men.
The NIH states that yohimbine hydrochloride has been shown in human studies to be possibly effective in the treatment of male impotence resulting from erectile dysfunction or SSRI usage (e.g., anorgasmia). Published reports have shown it to be effective in the treatment of orgasmic dysfunction in men.
Cabergoline, an agonist of dopamine D₂ receptors which inhibits prolactin production, was found in a small study to fully restore orgasm in one third of anorgasmic subjects, and partially restore orgasm in another third. Limited data has shown that the drug amantadine may help to relieve SSRI-induced sexual dysfunction. Cyproheptadine, buspirone, stimulants such as amphetamines (including the antidepressant bupropion), nefazodone and yohimbine have been used to treat SSRI-induced anorgasmia. Reducing the SSRI dosage may also resolve anorgasmia problems.
Several treatments have been tested for treating premature ejaculation. A combination of medication and non-medication treatments is often the most effective method.
Bremelanotide (tentative brand name Rekynda), a melanocortin receptor agonist, has successfully completed phase III clinical trials for the treatment of HSDD. A New Drug Application is expected to be filed in the latter half of 2017.
Flibanserin is the first and only medication approved for women for the treatment of HSDD. It is only slightly effective over placebo, having been found to increase the average number of satisfying sexual events per month by 0.5 to 1. The side effects of dizziness, sleepiness, and nausea occur about three to four times more often. Overall improvement is slight to none.
Meditation has demonstrated effectiveness in case studies.
There is yet no reliable medication for delayed ejaculation. PDE5 inhibitors such as Viagra have little effect. In fact, Viagra has a delaying effect on ejaculation, possibly through additional effect in the brain or decrease of sensitivity in the head of the penis.
Therapy usually involves homework assignments and exercises intended to help a man get used to having orgasms through insertional intercourse, vaginal, anal, or oral, that is through the way to which he is not accustomed. Commonly, the couple is advised to go through three stages. At the first stage, a man masturbates in the presence of his partner. Sometimes, this is not an easy matter as a man may be used to having orgasms alone. After a man learns to ejaculate in the presence of his partner, the man's hand is replaced with the hand of his partner. In the final stage, the receptive partner inserts the insertive partner's penis into the partner's vagina, anus, or mouth as soon as the ejaculation is felt to be imminent. Thus, a man gradually learns to ejaculate inside the desired orifice by an incremental process.
The condition is sometimes classified as a psychiatric disorder. However, it can also be caused by medical problems such as diabetic neuropathy, multiple sclerosis, genital mutilation, complications from genital surgery, pelvic trauma (such as from a straddle injury caused by falling on the bars of a climbing frame, bicycle or gymnastics beam), hormonal imbalances, total hysterectomy, spinal cord injury, cauda equina syndrome, uterine embolisation, childbirth trauma (vaginal tearing through the use of forceps or suction or a large or unclosed episiotomy), vulvodynia and cardiovascular disease.
A common cause of situational anorgasmia, in both men and women, is the use of anti-depressants, particularly selective serotonin reuptake inhibitors (SSRIs). Though reporting of anorgasmia as a side effect of SSRIs is not precise, studies have found that 17–41% of users of such medications are affected by some form of sexual dysfunction.
Another cause of anorgasmia is opiate addiction, particularly to heroin.
About 15% of women report difficulties with orgasm, and as many as 10% of women in the United States have never climaxed. Only 29% of women always have orgasms with their partner.
Compared with the options available for treating sexual dysfunction in men (for whom results are concretely observable), those available for women are limited. For example, PDE5 inhibitors, oral medications for treating erectile dysfunction in men, have been tested for their ability to increase sexual responses such as arousal and orgasm in women—but no controlled trials have been done in women with SCI, and trials in other women yielded only inconclusive results. In theory, women's sexual response could be improved using a vacuum device made to draw blood into the clitoris, but few studies on treatments for sexual function in women with SCI have been carried out. There is a particular paucity of information outside the area of reproduction.
Although erections are not necessary for satisfying sexual encounters, many men see them as important, and treating erectile dysfunction improves their relationships and quality of life. Whatever treatment is used, it works best in combination with talk-oriented therapy to help integrate it into the sex life.
Oral medications and mechanical devices are the first choice in treatment because they are less invasive, are often effective, and are well tolerated. Oral medications include sildenafil (Viagra), tadalafil (Cialis), and vardenafil (Levitra).
Penis pumps induce erections without the need for drugs or invasive treatments. To use a pump, the man inserts his penis into a cylinder, then pumps it to create a vacuum which draws blood into the penis, making it erect. He then slides a ring from the outside of the cylinder onto the base of the penis to hold the blood in and maintain the erection. A man who is able to get an erection but has trouble maintaining it for long enough can use a ring by itself. The ring cannot be left on for more than 30 minutes and cannot be used at the same time as anticoagulant medications.
If oral medications and mechanical treatments fail, the second choice is local injections: medications such as papaverine and prostaglandin that alter the blood flow and trigger erection are injected into the penis. This method is preferred for its effectiveness, but can cause pain and scarring.
Another option is to insert a small pellet of medication into the urethra, but this requires higher doses than injections and may not be as effective. Topical medications to dilate the blood vessels have been used, but are not very effective or well tolerated. Electrical stimulation of efferent nerves at the S2 level can be used to trigger an erection that lasts as long as the stimulation does.
Surgical implants, either of flexible rods or inflatable tubes, are reserved for when other methods fail because of the potential for serious complications, which occur in as many as 10% of cases. They carry the risk of eroding penile tissue (breaking through the skin). Although satisfaction among men who use them is high, if they do need to be removed implants make other methods such as injections and vacuum devices unusable due to tissue damage.
It is also possible for erectile dysfunction to exist not as a direct result of SCI but due to factors such as major depression, diabetes, or drugs such as those taken for spasticity. Finding and treating the root cause may alleviate the problem. For example, men who experience erectile problems as the result of a testosterone deficiency can receive androgen replacement therapy.
Some drugs such as trazodone may cause priapism as a side effect, in which case discontinuing the medication may give relief. Additionally, the condition can sometimes start only after the discontinuation of SSRIs. In some recorded cases, the syndrome was caused by or can cause a pelvic arterial-venous malformation with arterial branches to the penis or clitoris; surgical treatment was effective in this case.
In other situations where the cause is unknown or less easily treatable, the symptoms can sometimes be reduced by the use of antidepressants, antiandrogenic agents, and anaesthetising gels. Psychotherapy with cognitive reframing of the arousal as a healthy response may also be used.
More recently, the symptoms of the condition have also been linked with pudendal nerve entrapment. Regional nerve blocks and less common surgical intervention have demonstrated varying degrees of success in most cases. There is, however, no evidence for the long-term efficacy of surgical intervention.
In one recent case, serendipitous relief of symptoms was noted from treatment with varenicline, a treatment for nicotine addiction.
As sexual anhedonia is the source of considerable dissatisfaction among its sufferers, several treatment methods have been devised to help patients cope. Exploration of psychological factors is one method, which includes exploring past trauma, abuse, and prohibitions in the cultural and religious history of the person. Sex therapy might also be used as a way of helping a sufferer realign and examine his or her expectations of an orgasm. Contributing medical causes must also be ruled out and medications might have to be switched when appropriate. Additionally, blood testing might help determine levels of hormones and other things in the bloodstream that might inhibit pleasure. This condition can also be treated with drugs that increase dopamine, such as oxytocin, along with other drugs. In general, it is recommended that a combination of psychological and physiological treatments should be used to treat the disorder.
Other drugs which may be helpful in the treatment of this condition include dopamine agonists, oxytocin, phosphodiesterase type 5 inhibitors, and alpha-2 receptor blockers like yohimbine.
The first-line method for sperm retrieval in men with spinal cord injury is "penile vibratory stimulation" (PVS). The penile vibratory stimulator is a plier-like device that is placed around glans penis to stimulate it by vibration. In case of failure with PVS, spermatozoa are sometimes collected by electroejaculation, or surgically by per cutaneous epididymal sperm aspiration (PESA) or testicular sperm extraction (TESE).
If a couple is experiencing infertility as a result of retrograde ejaculation and medications are not helping, the male's ejaculate may be centrifuged and the isolated sperm injected directly into the woman through the use of intrauterine insemination. In more severe cases, in-vitro fertilization with intracytoplasmic sperm injection may be used.
These medications tighten the bladder neck muscles and prevent semen from going backwards into the bladder. However, the medications do have many side effects and they have to be taken at least 1–2 hours prior to sexual intercourse. In many cases, the medications fail to work at the right time because most men are not able to predict when they will have an orgasm.
It is thought that people who suffer from this disorder, suffer from a dysfunction in the release of the chemical dopamine in the nucleus accumbens, the brain's primary reward center. This part of the brain is thought to play a role in pleasurable activities, including laughter, addiction, and music. Additionally, it is thought that depression, drug addiction, high levels of prolactin, low testosterone, and uses of certain medications might play a role in inhibiting dopamine. A spinal cord injury or chronic fatigue syndrome might also occasionally cause this disorder. Age may also be a cause of this disorder.
A sudden-onset sexual anhedonia can also be a symptom of sensory neuropathy, which is most commonly the result of pyridoxine toxicity (e.g., from large doses of vitamin B6 supplements).
In this case, the sexual dysfunction promptly resolves spontaneously once the B6 supplementation is stopped.
Increased serum prolactin (PRL) concentration in patients brains from psychiatric medicine can also affect sexuality.
Psychiatric medicine is known to cause the brain to form more dopamine receptors for the dopamine blocking effect. The normal amount of dopamine released during sex is insufficient to stimulate the larger number of dopamine receptors.
Dr. Mahmood Bhutta, an otorhinolaryngologist at John Radcliffe Hospital, states that sexually induced sneezing may be genetically determined, and may result from the way the central nervous system is wired:
"[T]his reflex demonstrates evolutionary relics in the wiring of a part of the nervous system called the autonomic nervous system. [...] This is the part beyond our control, and which controls things like our heart rate and the amount of light let in by our pupils. [...] Sometimes the signals in this system get crossed, and I think this may be why some people sneeze when they think about sex."
Another possible explanation concerns the existence of erectile tissue in the nose, which may become engorged during sexual arousal, triggering a sneeze.
Phallophobia in its narrower sense is a fear of the erect penis and in a broader sense an excessive aversion to masculinity.
The person experiences sneezing as a result of sexual thoughts, arousal, intercourse, or orgasm. Sneezing occurs independent of external nasal stimuli or allergens, and may occur at any point during a sexual experience. Both men and women are affected by the phenomenon.
Anejaculation is the pathological inability to ejaculate in males, with ("orgasmic") or without ("anorgasmic") orgasm.
There is not enough known about persistent genital arousal disorder to definitively pinpoint a cause. Medical professionals think it is caused by an irregularity in sensory nerves, and note that the disorder has a tendency to strike post-menopausal women, or those who have undergone hormonal treatment.
There is no standard method of treating or managing POIS. Patients need to be thoroughly examined in an attempt to find the causes of their POIS symptoms, which are often difficult to determine, and which vary across patients. Once a cause is hypothesized, an appropriate treatment can be attempted. At times, more than one treatment is attempted, until one that works is found.
Affected individuals typically avoid sexual activity, especially ejaculation, or schedule it for times when they can rest and recover for several days afterwards. In case post-coital tristesse (PCT) is suspected, patients could be treated with selective serotonin reuptake inhibitors.
Another patient, in whom POIS was suspected to be caused by cytokine release, was successfully treated with nonsteroidal anti-inflammatory drugs (NSAIDs) just prior to and for a day or two after ejaculation. The patient took diclofenac 75 mg 1 to 2 hours prior to sexual activity with orgasm, and continued twice daily for 24 to 48 hours.
One POIS patient with erectile dysfunction and premature ejaculation had much lower severity of symptoms on those occasions when he was able to maintain penile erection long enough to achieve vaginal penetration and ejaculate inside his partner. The patient took tadalafil to treat his erectile dysfunction and premature ejaculation. This increased the number of occasions on which he was able to ejaculate inside his partner, and decreased the number of occasions on which he experienced POIS symptoms. This patient is thought to have Dhat syndrome rather than true POIS.
In one patient, the POIS symptoms were so severe, that he decided to undergo castration in order to relieve them. The POIS symptoms were cured by the castration.
Two patients, in whom POIS was suspected to be caused by auto-immune reaction to their own semen, were successfully treated by allergen immunotherapy with their own autologous semen. They were given multiple subcutaneous injections of their own semen for three years. Treatment with autologous semen "might take 3 to 5 years before any clinically relevant symptom reduction would become manifest".
Treatments are not always successful, especially when the cause of POIS in a particular patient has not been determined. In one patient, all of whose routine laboratory tests were normal, the following were attempted, all without success: ibuprofen, 400 mg on demand; tramadol 50 mg one hour pre-coitally; and escitalopram 10 mg daily at bedtime for 3 months.
It is possible that a similar disease exists in women, though, as of 2016, there is only one documented female patient.