absence of menorrhea

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Amenorrhea — Absence or cessation of menstruation. Amenorrhea is conventionally divided into primary and secondary amenorrhea: {{}}Primary amenorrhea menstruation never takes place. It fails to occur at puberty. Secondary amenorrhea menstruation starts but… … Medical dictionary
Menstruation — The periodic blood that flows as a discharge from the uterus. Also called menorrhea, the time during which menstruation occurs is referred to as menses. The menses occurs at approximately 4 week intervals to compose the menstrual cycle. * * *… … Medical dictionary

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