There are two possibilities for bleeding even after menstruation, one may be abnormal bleeding and the other may be normal bleeding, such as ovulatory bleeding, as follows: 1. Abnormal bleeding may be caused by inflammatory factors, such as cervicitis, endometritis, cervical polyps, endometrial polyps, endocrine disorders, uterine fibroids, ovarian tumors, etc., which may lead to abnormal uterine bleeding. Abnormal uterine bleeding is often accompanied by other symptoms, such as abnormal discharge, abdominal pain, abdominal mass, etc. The causes of bleeding can be distinguished through gynecological examination and ultrasound and laboratory tests. 2. Normal uterine bleeding occurs in the middle of ovulation between two menstrual periods, often accompanied by an increase in lacrimal clear leucorrhea, some of which is accompanied by mild abdominal pain, usually cleared in 2-3 days, with a maximum of no more than The amount is very small and there will be no abnormal findings when doing ultrasound or gynecological examination and auxiliary examination.