C-section external patches can usually be removed in about a week. If the incision is not healing well, the external patch needs to be used for a longer period of time as appropriate. The main purpose of the C-section patch is to protect the incision. Cesarean section incision usually need seven layers of suture, the outermost epidermal wound usually heals in about a week, so the external patch can be removed in a week. If the incision is infected, fat liquefaction, etc., the healing time will become longer, and the external patch will need to be used for a longer period of time. After cesarean section surgery, the external patch of the incision usually needs to be changed every other day, and when changing, it needs to be sterilized with iodine povidone. When changing the patch, you should pay attention to observe whether there is redness, swelling, fluid and other abnormalities in the incision, and if there is any problem with the healing of the incision, you need to deal with it in time. After cesarean section, you should pay attention to rest, eat light, nutritious, easy to digest food.