Most patients have a satisfactory prognosis after a relatively short recovery can be normal milk intake, abdominal distension disappears can defecate on their own, weight gain, growth and development can reach the level of normal children of the same age. A few patients may have postoperative anastomotic stricture on the dentate line, rectal mucosal prolapse, intermittent and recurrent enteritis, defecation disorders and other serious complications such as postoperative abdominopelvic hemorrhage, intramyocardial infection and intra-pelvic torsion of the trailing intestine. Some patients are slow to recover from postoperative bowel function. It takes at least 1 month to fully recover from frequent and loose stools after surgery, and fewer patients have no obvious improvement in postoperative symptoms or even recurrent enteritis combined with abdominal distension, which require symptomatic treatment and hospitalization if necessary. Postoperative dilation usually lasts for about a month to avoid artificial damage to the perforation during dilation, and operators should be careful. Patients with congenital megacolon have a high incidence of congenital megacolon, and the surgery is relatively complex and may leave more problems after surgery. Patients are advised to choose a specialist hospital with a certain level of technology for the surgery to avoid late treatment difficulties for parents.