Pain around the navel in children should be given different treatment methods according to different causes, the following are common: 1. Acute gastroenteritis. The pain may be accompanied by vomiting or change in the stool pattern, containing pus and blood or dilute watery stool. 2. Mesenteric lymphadenitis. The pain is intermittent and vague, the general condition is good, not accompanied by obvious vomiting, the pressure pain around the umbilicus is not obvious, and the enlarged lymph nodes can be seen on abdominal ultrasound. 3. Acute appendicitis. Children are younger, appendix pain early will appear acute upper respiratory infection or acute gastritis performance, manifested as periumbilical pain, gradually transferred to the right lower abdomen, the right lower abdomen will have obvious pressure pain, need to promptly go to the hospital, if necessary, surgical treatment.