Bleeding again after the end of menstruation may be caused by prolonged menstruation, uterine pathology, ectopic pregnancy and other conditions, which should be promptly standardized in the hospital. During menstruation, if the luteal atrophy is prolonged, the corpus luteum continues to secrete progesterone, and the endothelium sheds irregularly under the influence of progesterone, or even fails to shed completely, the symptoms of intermittent menstruation will be manifested. If you are suffering from uterine diseases, such as cervicitis, cervical polyps, endometrial polyps and other conditions, or cervical blood vessel rupture may also lead to bleeding, you should seek medical treatment in a timely manner, improve the gynecological examination, clarify the cause of the disease and then targeted treatment. In addition, ectopic pregnancy can also cause vaginal bleeding, which can be diagnosed and treated by means of abdominal ultrasound and serum chorionic gonadotropin (hcg) test. You can go to the obstetrics and gynecology department to improve the gynecological examination and get reasonable treatment under the doctor’s guidance.