The sequelae of pediatric intestinal obstruction mainly include intestinal necrosis, short bowel syndrome and malnutrition. 1. Intestinal necrosis: pediatric intestinal obstruction can not be effectively relieved due to the obstruction leads to intestinal dilatation, local congestion, enlargement, high degree of swelling caused by the blood supply to the intestinal tract after the circulatory disorders lead to ischemia, and then intestinal necrosis occurs. 2. Short bowel syndrome: once intestinal necrosis occurs in pediatric intestinal obstruction, it is necessary to take part of the intestinal resection method to treat intestinal obstruction, if the resection of the intestinal tube is more, short bowel syndrome may occur after the operation. 3. Malnutrition: After necrosis of pediatric intestinal obstruction, partial resection of intestinal tubes will lead to intestinal absorption dysfunction, and it is difficult to absorb the nutrients in food, which will lead to the occurrence of malnutrition. If the sequelae of pediatric intestinal obstruction, it is recommended to go to the hospital in a timely manner, after clarifying the cause of the disease, and actively cooperate with the doctor for treatment.