Endometrial shedding is a normal physiological phenomenon, there is no effect, endometrial shedding refers to the time of menstruation, due to fluctuations in hormone levels, estrogen and progesterone decline, resulting in endometrial stripping caused by cyclic menstruation, is a normal physiological phenomenon. The clinical manifestation of menstruation is the stripping of the endometrium, the endometrium under the influence of ovarian hormones, cyclic stripping, the formation of a normal menstrual cycle, the normal menstrual cycle manifestation is the stripping of the endometrium, clinically, if there is irregular vaginal bleeding, prolongation of the menstrual period, increased menstrual blood, may be due to the ovarian dysfunction caused by.