Abdominal pain in children is a more common symptom in pediatrics, and there are many causes of abdominal pain, such as intra-abdominal or extra-intestinal lesions, organic lesions or functional lesions, medical disorders or surgical disorders: 1, children under the age of three years are often unable to express their own feelings, and the main manifestation of abdominal pain is crying, vomiting, and this stage of the child’s more common abdominal pain due to intestinal spasms, but also includes some surgical disorders, such as Intussusception; 2, older children abdominal pain may be related to diet, such as pain before meals, after meals or hunger, may be gastritis, gastric ulcer conditions; 3, if the child first abdominal pain and then fever, should be further physical examination or related auxiliary examination, need to be vigilant for surgical acute abdominal disease, such as appendicitis; 4, if the child first fever and then abdominal pain, often due to extra-intestinal infections. Some children have abdominal pain due to acute upper respiratory tract infections, such as common mesenteric lymphadenitis. In addition, pneumonia can also cause referred pain; 5, the child’s abdominal pain, accompanied by diarrhea, vomiting, should be asked about the medical history and the child’s diet. Some children have gastrointestinal disorders caused by overeating, while others have gastrointestinal infections and unclean diets. Therefore, depending on the age group, including the characteristics of abdominal pain, and thus further confirmation.