Abdominal X-ray is a commonly used clinical examination program, which is often used to check digestive system lesions and urinary system lesions. 1. Digestive system lesions: combined with barium meal, it can check stomach lesions, such as stomach cancer, stomach ulcer, etc.; it can also help to diagnose intussusception, intestinal obstruction, gastrointestinal perforation, etc.; if the patient has hepatobiliary and pancreatic lesions with calcified foci, signs of the lesions may be found during abdominal X-ray examination. 2. Urinary system lesions: mainly urinary tract stone lesions, as most stones can be visualized by X-ray. In the abdominal X-ray examination, if found in the kidneys, ureters and other urinary tract tissues and organs appear bright spots, to consider the urinary tract stone lesions. Abdominal X-ray examination has a wide range of clinical applications, in addition to the digestive tract and urinary system, but also can show the thoracic diaphragm, lumbar spine and other parts of the lesions. For the abnormalities found in the examination, it must be combined with the patient’s medical history, clinical symptoms and other examination items to analyze and confirm the diagnosis, and then carry out follow-up treatment.