Under normal circumstances, the evil discharge will continue to be discharged for 4-6 weeks after delivery, about 500ml, but there are some individual differences. According to the color, content and time of the day, the discharge is classified as bloody, plasma or white. The first 3-4 days after delivery are characterized by bloody discharge, followed by plasma discharge in the next 4-14 days, and finally white discharge lasting for about 3 weeks. It is normal if a small amount of white discharge remains for up to 42 days (6 weeks) after delivery. In some cases, due to the repair of the endometrial lining at the site of the placenta, it may peel off and bleed, and the period of discharge may be slightly prolonged. However, in general, most women will be able to discharge their discharge within 42 days. Some women may have abnormal delivery, cesarean section, etc., which may lengthen the time of discharge during puerperium, but most of them will be able to discharge their discharge within 56 days.