menstruation
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This site provides you with the information about menstruation, menstruation cycle, irregular menstruation, abnormal, frequent menstruation, menstruation problem, abnormal bleeding, bleeding disorder info, menstruation pad, menopause menstruation, during menstruation care, first period, tips, information, advice, and more.
Menstruation is the shedding of the uterine lining (endometrium). It occurs on a regular basis in reproductive-age females of certain mammal species. Overt menstruation (where there is bleeding from the vagina) is found primarily in humans and chimpanzees. The females of other placental mammal species have estrous cycles, in which the endometrium is reabsorbed by the animal (covert menstruation) at the end of its reproductive cycle. Many zoologists regard this as different from a "true" menstrual cycle.
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