If you still have unclean fluid 50 days after cesarean delivery, you must go to the hospital for an examination. The most common test is ultrasound, which is done to find out if there are residues in the uterine cavity. If there is residue, the uterus can be cleared if necessary, or you can use drugs that promote uterine contractions to facilitate the discharge of residue. On the other hand, you can find out how the uterine scar is healing. Some pregnant mothers have formed a diverticulum in the uterine incision after having a cesarean section, which can accumulate a small amount of blood in the vagina, resulting in intermittent and unclean malaria. Therefore, if the dew does not come out after the cesarean section, you should first go to the hospital for a checkup and depending on the cause, the doctor will then treat it with medication or cleanse the uterus according to the situation.