If bleeding still exists after menstruation, consider the possibility of incomplete menstruation, ovulatory bleeding, abnormal shedding of endometrium, inflammation and infection, which need to be treated differently according to the bleeding situation: a. If bleeding persists after menstrual bleeding, but the amount of bleeding is reduced to a certain extent, consider that the endometrium is not completely shed, consider incomplete menstruation, which can be examined by ultrasound according to the endometrial condition The bleeding can be stopped with medication, such as uterine blood or progesterone. A small amount of bleeding caused by white blood about a week after the end of a woman’s period is considered ovulatory bleeding, because the body hormone level changes lead to a small amount of endometrial shedding, belongs to the normal physiological phenomenon, do not need to deal with. Third, non-ovulatory abnormal small amount of bleeding consider the influence of external environment, such as strenuous exercise, sex, violent mood swings and other causes of endometrial shedding. Fourth, endometritis, adnexitis, vaginitis, etc. may cause abnormal bleeding.