Normally, it takes 8 to 12 weeks for a baby to have normal bowel movements after megacolon surgery. Babies need a certain amount of time to repair after megacolon surgery in order to restore the normal physiological function of the intestine. After the surgery, there needs to be the repair of intestinal resection severed suture incision, the repair of intestinal peristalsis function, and the repair of intestinal flora. And because there are individual differences, surgical operation methods are different, so the specific repair time will be different, usually in 8~12 weeks. After the baby’s megacolon surgery, parents should pay attention to strengthen the care, prevent postoperative wound infection and go to the hospital regularly for review, to clarify the baby’s postoperative physical recovery status.