Acute pancreatitis is divided into two types: mild and severe, with a better prognosis for mild cases and a poor prognosis for severe cases, with a mortality rate of 20%-50%. Its occurrence is related to cholelithiasis (the most common), biliary tract infection, biliary ascariasis, heavy alcohol consumption and overeating, pancreatic duct obstruction (such as pancreatic duct stones, ascariasis, pancreatic duct stenosis, tumors, etc.), laparotomy, hypercalcemia, and few drugs. In general, it is still a preventable disease and the measures are as follows: (1) Routine physical examination for the presence of cholelithiasis, biliary ascariasis, pancreatic duct obstruction, hypercalcemia and other causes. (2) If gallstone, biliary ascariasis, pancreatic duct obstruction, etc. exist, endoscopic retrograde cholangiopancreatography (ERCP), biliary bacteriology and cytology, biliary pressure and papillary sphincter function measurement, papillary sphincterotomy, biliopancreatic duct lithotomy and lithotripsy, biliopancreatic duct stent placement and drainage, nasobiliary duct drainage and biliary ascariasis removal should be performed as early as possible. (3) Pay attention to the diet and alcohol consumption in moderation, mainly low-fat diet. (4) Identify the cause of hypercalcemia, such as parathyroid tumor, excessive vitamin D, etc., and provide appropriate treatment. (5) For those who are taking thiazide diuretics, azathioprine, glucocorticoids, tetracycline, and sulfonamides, they should be closely observed especially in the first 2 weeks. ”This is the idea of “treating the disease before it happens” in Chinese medicine, and you are the direct beneficiary.