Children’s stomach pain generally need to do routine blood tests, routine urine tests, routine stool tests, abdominal ultrasound, abdominal plain film examination, etc. It is recommended to consult the doctor in time and follow the doctor’s instructions for examination and treatment. 1. routine blood test: can check whether the stomach pain is caused by infectious diseases, such as appendicitis, enteritis, etc., the white blood cells will increase when infected, the treatment is based on anti-infective treatment, such as penicillin, cephalosporin, etc., depending on the cause of the disease, part of the internal medicine treatment is ineffective and even require surgical operation treatment. 2. Urine routine: urine routine examination can check whether there is urinary tract infection, nephritis and so on. 3. Stool routine: Stool routine examination can check whether the stomach pain is caused by parasitic infection or bacterial infection in the digestive tract. If pancreatitis is suspected, blood and urine amylase tests are also needed. 4. Abdominal ultrasound: Abdominal ultrasound examination can see if the stomach pain is caused by lymphadenitis, abdominal organ disease. 5. Abdominal radiographs: Abdominal radiographs can see if the stomach pain is caused by intestinal obstruction, perforation of the digestive tract, and so on. Pain is the body’s signal for help, and it is recommended to seek medical treatment in time to prevent delay. Under the guidance of the doctor to carry out relevant examinations, clear diagnosis and then targeted treatment.