Causes of FSD

The causes of female sexual dysfunction are poorly defined. Several factors may impede the sexual response cycle, which requires physical and psychological stimulation: Alcohol, Anxiety, Depression, Emotional problems, Illness, Negative body perception, and Stress, Drugs and medications, Birth control pills, and Smoking.

One concept, known as the vascular theory, is that diminished blood flow to the pelvic region, due to a medical condition, aging, stress, or hypoactive sexual desire, causes reduced sensitivity (particularly of the clitoris) and dryness, and impairs arousal. Decreased blood flow is associated with medical conditions such as diabetes and artherosclerosis. This concept has fueled clinical research and has led to the introduction of topical creams that, when applied to the clitoris, cause vascular dilation, increased blood flow, and vascular congestion associated with the excitement stage. Sensitivity is increased and may lead to arousal.

A second concept, the hormone theory, focuses on decreased levels of sex hormones, such as estrogen and testosterone, caused by aging. For some women, hormone replacement therapy leads to greater sexual desire. Estrogen, a primarily female hormone, is associated with sexual desire. Testosterone, a primarily male sex hormone, plays a role in women's sexual development and function, including sensitivity of the breasts and clitoris. Some women experience diminished sexual desire, absence of sexual fantasies, and impaired sensitivity following menopause or hysterectomy as a result of reduced estrogen.

A third perspective, what could be called the dissatisfaction theory, is neither psychological nor medical. A great deal of women's sexual dysfunction is not caused by hormone deficiency or diminished pelvic blood flow; it results from inadequate genital stimulation. The fact that young, healthy women experience sexual dysfunction gives credence to this view. Poor communication by both partners may result in men not knowing how to stimulate a woman so that she becomes aroused. This leads to unsatisfactory sex and can cause arousal problems, lack of sexual interest, depression, and aversion to sex. Interestingly, the APA lists the "adequacy of [female] sexual stimulation" as a factor only in its discussion of female orgasmic disorder. This implies that it is not a fundamental aspect of female sexual function and so not affected by medical or psychological conditions.