While the DSM-5 has reclassified female sexual function disorders, clinical practice related to screening and management remains largely based on the prior classification of hypoactive sexual desire disorder (HSDD). HSDD is the most prevalent sexual disorder in women. Women with HSDD report at least 6 months of low motivation or desire for sexual activity with associated significant personal distress. The Decreased Sexual Desire Screener (https://www.sexhealthmatters.org/resources/decreased-sexual-desire-screener) is a validated self-administered questionnaire that can aid clinicians in diagnosing this disorder.
Pathophysiologically, hypoactive sexual desire disorder is related to an imbalance of central sexual excitatory and inhibitory pathways. Excitatory pathways involve the action of dopamine, melatonin, oxytocin, vasopressin, and norepinephrine, whereas inhibitory pathways utilize opioid, serotonin, and endocannabinoid systems. Psychological disorders, medications, medical comorbidities, and relationship concerns can further contribute to the effect that this imbalance has on sexual functioning.
Several medical conditions (depression, anxiety, diabetes, urinary incontinence, and multiple sclerosis) and certain medications (antidepressants, hormonal therapy, antihypertensives) can contribute to low sexual desire, so a detailed history is essential for eliciting potentially modifiable risk factors. In certain women, it may be appropriate to perform a gynecologic examination to identify areas of tenderness or discomfort that might be associated with painful intercourse and reduced sexual desire. Laboratory evaluation is not necessary for making the diagnosis, although prolactin and thyroid hormone levels can be measured in select patients where other symptoms raise concern for hormonal abnormalities. Notably, testosterone levels do not correlate with female sexual function and should not be routinely measured.
Treatment for low sexual desire includes office-based counseling, psychological therapy, and medications. Office-based counseling can be facilitated using an approach based on the PLISSIT model employed in sex therapy. (The letters of the model’s name refer to the four different levels of intervention that a sex therapist can use: permission [P], limited information [LI], specific suggestions [SS], and intensive therapy [IT].) In addition to sex therapy, intensive psychological therapy may include cognitive-behavioral training and mindfulness-based stress reduction training (see Chapter e4-06).
Based on the understanding of sexual excitatory and inhibitory pathways, medications that increase dopamine or decrease serotonin release or binding may be effective in increasing sexual desire. Flibanserin, which is a full agonist of the 5-HT1A receptor and, with lower affinity, an antagonist of the 5-HT2A receptor, was the first FDA-approved medication for the treatment of low sexual desire in premenopausal women. A 2016 systematic review evaluated the efficacy of flibanserin in 5914 premenopausal and postmenopausal women. Compared to women taking placebo, women who were taking flibanserin had a small increase in the number of satisfying sexual events and sexual desire intensity but were four times more likely to experience the side effects of dizziness and somnolence. Flibanserin is prescribed in a single daily oral dose of 100 mg, to ...