Severe abdominal pain is a common clinical symptom, mostly caused by abdominal organ diseases. There are mainly the following aspects: 1, inflammatory abdominal pain, slow onset, persistent, fixed pressure pain at the lesion site, elevated temperature and white blood cells, most commonly seen in acute gastroenteritis, acute appendicitis, acute cholecystitis, etc.; 2, perforation abdominal pain, abdominal pain occurs suddenly, persistent severe pain, often accompanied by shock, there may be pneumomediastinum and abdominal exudate, most commonly seen in gastroduodenal perforation; 3, obstructive abdominal pain, the onset of the disease, sharp, paroxysmal aggravation, accompanied by vomiting, abdominal distension, most commonly seen in intestinal obstruction, intussusception, biliary tract, biliary tract, abdominal pain, abdominal pain, abdominal pain, Obstructive abdominal pain, acute onset, severe abdominal pain, paroxysmal aggravation, accompanied by vomiting, abdominal distension, most common in intestinal obstruction, intussusception, biliary stones, urinary stones, etc.; 4, organ torsion abdominal pain, the onset of a more acute, severe abdominal pain, often accompanied by mild shock, abdominal pain is persistent, paroxysmal aggravation, abdominal pain, can be palpated with obvious pain in the mass, most commonly found in intestinal obstruction, intestinal mesenteric or omental torsion, ovarian cysts, such as torsion of the tip of the hemorrhage; 5, hemorrhagic Abdominal pain, abdominal pain is persistent and mild, with hemorrhagic shock manifestations, most commonly seen in the abdominal cavity organs or blood vessels, spontaneous or pathological bleeding; 6, injurious abdominal pain, most of the history of abdominal trauma, including injury to cavity organs and parenchymal organs. Cavity organ injury content flows into the abdominal cavity, causing severe peritonitis, parenchymal organ rupture can cause intra-abdominal hemorrhage, hemorrhagic shock.