If you have black vaginal bleeding during non-menstrual period, first of all, you should stop the bleeding by taking hemostatic pills, and at the same time, you should pay attention to rest, reduce activities as much as possible, don’t eat cold, spicy and stimulating things, and never have sex at this time. 2-3 days after the bleeding stops, you should go to the hospital for a vaginal ultrasound examination to see if there are any abnormalities in the uterus and pelvis. If these two diseases are ruled out, the bleeding may be caused by menstrual disorders, which should be treated with menstrual regulating drugs.