It is normal to have no discharge for more than twenty days after a cesarean section. After natural labor and cesarean section, there will be a period of time when there will be vaginal discharge of the discharge, which lasts for about 4-6 weeks. In the first 3 days after surgery or delivery there is bloody discharge, which is bright red in color and will be discharged for about 3 days, followed by plasma discharge, which is light red in color, and white discharge after 10 days. It is normal if there is no more discharge for 20 days. During the puerperium, that is, 42 days after delivery, as long as the vaginal discharge is clean, there is no residue in the uterine cavity, and the wound is healing well, it means that the puerperium review wound has grown back. If there is still blood after 20 days of cesarean section, or if there is a lot of blood, you need to go to the hospital to find out if the uterus is not recovering well, if there is any bleeding in the uterine cavity, and if further treatment is needed. If there is pain in the lower abdomen, fever, or vaginal bleeding during the puerperium, you should go to the hospital for examination.