How does a few haemorrhage return a responsibility after menstruation passes

After menstruation, there is a small amount of bleeding, if the possibility of pregnancy is ruled out, it is considered to be caused by incomplete corpus luteum atrophy. Women show incomplete corpus luteum atrophy, prolonged menstrual period, changes in menstrual cycle, vaginal bleeding after the end of menstruation, bleeding is generally not too much, bleeding time is relatively long. A small amount of vaginal bleeding after menstruation, also seen in patients with endometrial polyps, will also show bleeding, if the patient is cesarean section patients, uterine incision did not heal well, the formation of uterine scar diverticulum, will also show a small amount of bleeding after menstruation. It's a scar diverticulum, and it needs surgery.