A general term that describes the inability to reach orgasm. Often it is referred to in the context of a side effect of medication; anorgasmia specifically describes a difficulty at the orgasm stage of sexual excitement. It may have no relationship to ones ability to feel sexual excitement or arousal. It is usually used in reference to women, although men do experience anorgasmia.
Anorgasmia may be a result of many things including physical and psychological stressors, changes, or permanent conditions. Anorgasmia may be temporary or persistent.