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当子宫内膜脱落出血,自阴道流出,便称为月经。一般为28天￣30天行经一次,失血50ml左右,持续3天￣7天。有规律的月经是生育的必要条件,说明生殖系统功能正常,是女性身体健康的重要标志。但是,除了正常月经外,还有一些特殊的月经。
When the endometrial shedding bleeding from the vagina outflow, it is called menstruation. Usually 28 days ~ 30 days after passing once, about 50ml blood loss, lasting 3 days ~ 7 days. Regular menstruation is a necessary condition for fertility, indicating normal functioning of the reproductive system is an important symbol of the health of women. However, in addition to normal menstruation, there are some special menstruation.