It indicates the absence of menstruation. It is a symptom and not a disease entity.
It denotes infrequent, irregularly timed episodes of bleeding usually occurring at intervals of more than 35 days.
It denotes frequent episodes of menstruation, usually occurring at intervals of 21 days or less.
It denotes regularly timed episodes of bleeding that are excessive in amount (>80ml) and/or duration of flow (>5 days).
It refers to irregularly timed episodes of bleeding superimposed on normal cyclical bleeding.
It means excessive, prolonged bleeding that occurs at irregularly timed and frequent intervals.
It refers to regularly timed but scanty episodes of bleeding.
It refers to bleeding (usually not excessive) that occurs between otherwise normal menstrual cycles.
It denotes the occurrence of menstruation before the age of 10 years.
It denotes vaginal bleeding after sexual intercourse.