Acute severe pancreatitis is an inflammation of the pancreas, which is a kind of acute abdomen. You should go to the hospital as soon as possible to take appropriate treatment measures, there may be pancreatic necrosis and complication of peritonitis, leading to shock, secondary systemic multi-organ failure, high mortality rate. Acute severe pancreatitis may cause pancreatic parenchymal hemorrhage and necrosis, the swelling of the pancreatic gland is dark purple in color, the necrosis is grayish-black, and fat necrosis occurs in the abdominal cavity. Clinically, there will be severe abdominal pain, mostly located in the left upper abdomen radiating to the left shoulder and left waist accompanied by abdominal distension, nausea and vomiting, peritonitis will lead to abdominal muscle tension, rebound pain, and most of them are accompanied by varying degrees of fever. Acute severe pancreatitis can easily develop into systemic inflammatory response syndrome, infectious shock, and systemic multiple organ insufficiency or even failure. Acute severe pancreatitis, you should go to the hospital as soon as possible to take appropriate treatment measures.