The normal end of menstruation is around 2-8 days. If a woman has a period that ends in less than two days or more than eight days, it is not normal. The normal menstruation of a woman includes the menstrual volume and the menstrual cycle, which cannot be directly judged simply by the number of days of menstruation. As long as the menstrual cycle, menstrual period and menstrual volume are within the normal range, it means that there is no abnormality in the ovulation function of women and they are able to conceive normally and naturally. If there is an abnormal end of menstruation, such as a menstrual period of less than two days, it is considered to be a manifestation of uterine adhesions or low estrogen. For women whose menstrual period lasts more than seven days, it is considered to be caused by endometrial polyps or uterine fibroids.