Sexual dysfunction, also called Psychosexual Dysfunction, the inability of a person to experience sexual arousal or to achieve sexual satisfaction under appropriate circumstances, as a result of either physical disorder or, more commonly, psychological problems. The most common forms of sexual dysfunction have traditionally been classified as impotence (inability of a man to achieve or maintain penile erection) and frigidity (inability of a woman to achieve arousal or orgasm during sexual intercourse).

Because these terms—impotence and frigidity—have developed pejorative and misleading connotations, they are no longer used as scientific classifications, having been superseded by more specific terms; however, both terms remain in common usage, with a variety of meanings and associations