Abdominal pain is divided into acute abdominal pain and chronic abdominal pain, and the common causes of acute abdominal pain are as follows: 1, acute inflammation of abdominal organs: including acute gastritis, acute enteritis, acute pancreatitis, acute hemorrhagic necrotizing enteritis, acute cholecystitis, acute appendicitis, etc.; 2, obstruction or dilatation of cavernous organs: including intestinal obstruction, intussusception, biliary stones, etc.; 3, organ torsion or rupture: including intestinal torsion, strangulated intestinal obstruction gastrointestinal perforation, mesenteric or large omental torsion, ovarian cyst torsion, ectopic pregnancy rupture, etc.; 4, peritoneal inflammation: most are caused by gastrointestinal perforation, and a few are spontaneous peritonitis; 5, abdominal vascular occlusion: including ischemic enteropathy, abdominal aortic aneurysm and portal vein thrombosis, etc.; 6, abdominal wall diseases: including abdominal wall contusion, abscess and abdominal wall skin herpes zoster; common causes of chronic abdominal pain are as follows 1, chronic inflammation of abdominal organs: including chronic nephritis, duodenitis, chronic cholecystitis and biliary tract infection; 2, digestive tract motility disorders: including functional dyspepsia; 3, gastroduodenal ulcer; 4, abdominal organ torsion or obstruction: including chronic gastric torsion, intestinal torsion, etc.