Amenorrhea is the medical term for the absence of menstruation . There are two types of amenorrhea, primary and secondary. Primary amenorrhea refers to delayed menarche (the first menstrual period) and is defined as any one of three conditions: th...
If you're female, amenorrhea happens when you miss your monthly menstrual periods. Amenorrhea is the absence of menstrual bleeding.
Secondary amenorrhea occurs when you miss your period for six months or longer. Learn about its causes, symptoms, and treatment.