There are many reasons why menstruation never goes away, it may be caused by endocrine disorders, uterine factors, or factors such as intrauterine devices. First, if it is caused by endocrine disorders, it is recommended to go to the hospital on the second day of menstruation to do a hormone six test, there may be uterine dysfunctional bleeding. Usually wait for the test results to come out, under the doctor’s advice to use medication. Second, if it is caused by uterine factors, it may be uterine fibroids or endometrial polyps, etc., these factors may lead to prolonged menstruation. It is best to go to the hospital for ultrasound or hysteroscopy to find out what causes uterine bleeding, and then treat the symptoms under the guidance of the doctor. Third, of course, we can not rule out the intrauterine device caused by vaginal bleeding, if this factor is caused by the need to remove the ring with the assistance of a doctor. At the same time, the automatic abortion after pregnancy may also lead to the menstrual period has not been clean, go to the hospital to do a urine HCG, in order to rule out this factor.