Frigidity is the older term for female loss of libido. The more modern terminology includes sexual aversion disorder and sexual pain disorders.
Sexual aversion disorder is a psychological disorder where the person seeks to avoid sex and undertakes various behaviors to avoid sex. This disorder includes the older sexual condition known as "frigidity".
Sexual aversion disorder can be both over-diagnosed and under-diagnosed. It is over-diagnosed in cases where the patient has other reasons that are interfering with sexuality, such as tiredness, fatigue, other causes of low libido, or other causes of sexual pain. Also possible is inadequate foreplay or poor sexual technique. Such a person does not have a true aversion to sex.
Female orgasmic disorder is distinct from female sexual arousal disorder in that you may be highly aroused but cannot cross the threshold from arousal to climax. It is not just failure to have an orgasm during intercourse. Many women who have orgasms with their partners regularly through manual or oral stimulation may not do so during intercourse. In contrast to men, women learn how to orgasm, typically in the context of a trusting relationship. This learning curve increases until the fifth decade when it plateaus.
Sexual aversion disorder can be under-diagnosed in cases of sexual pain or other apparent psychological problems with sex. Physicians may assume a history of rape or childhood sexual abuse where none exists.
Orgasmic disorder can be lifelong or it can occur in women who have previously had little difficulty climaxing. For the 10 percent of women who have never experienced orgasm, the causes most often have to do with sexual inexperience, performance anxiety or past experiences, such as negative sexual upbringing or sexual trauma, that have led to inhibited sexual response. For a woman who has experienced orgasm in the past but can no longer do so, anger, resentment or hostility toward her partner can also be the cause, as can anxiety, personal crises and other stress factors. Certain medications may affect response as well, especially the newer antidepressants called selective serotonin reuptake inhibitors, such as fluoxetine (Prozac), paroxetine (Paxil) and sertraline (Zoloft).