The manifestations of GI malformations vary from person to person and from disease to disease: 1. congenital GI atresia: abdominal distention, vomiting, inability to eat, and inability to defecate; 2. intestinal duplication malformations: abdominal masses can be formed, causing abdominal discomfort, malnutrition, and even inducing mechanical intestinal obstruction and strangulated intestinal obstruction, and strangulated intestinal obstruction can easily cause intestinal necrosis, which is serious; 3. Meckel’s diverticulum: easily inducing GI bleeding; in addition, abnormal neurodevelopment can also cause GI obstruction.