Pancreatogenic abdominal pain is one of the symptoms of chronic pancreatitis (chronic pancreatitis), which is a persistent and permanent damage to pancreatic tissues and functions caused by various factors. The pancreas shows different degrees of alveolar atrophy, pancreatic duct deformation, fibrosis and calcification, as well as different degrees of pancreatic exocrine and endocrine dysfunction, and clinically it mainly manifests abdominal pain, diarrhea or steatorrhea, lethargy and malnutrition and other symptoms of pancreatic insufficiency. Typical chronic pancreatitis is rare in China, and it is difficult to confirm the diagnosis. Pancreatogenic abdominal pain need to do the examination: serum amylase and lipase quantitative except for the acute attack period, generally do not increase, fecal microscopy can be seen fat droplets and undigested muscle fibers, some patients may have positive urine sugar, fasting blood glucose increased. I. Pancreatic exocrine function test: (A) Pancreatic secretin test After stimulating the pancreas with pancreatic secretin, observe the secretion of pancreatic juice, sodium bicarbonate and pancreatic enzyme content. (B) Lundh test: This method is time-consuming and cumbersome, and is now less frequently used. （When the exocrine function of the pancreas is reduced and the secretion of chymotrypsin is insufficient, the amount of urinary PABA can be reduced, which is about 60% of the normal amount. This method is simple and easy to implement, and has been used recently. (D) Serum cholecystokinin – pancreatic secretin normal value of 60pg / ml. Second, the islet function test Fasting blood glucose is elevated, glucose tolerance test can be diabetic tolerance curve. Urine sugar may appear positive. Abdominal plain film can sometimes show calcified spots in the pancreas, and upper gastrointestinal imaging can show enlarged “C” tabs and signs of gastric and duodenal compression. Imaging is an important means of diagnosing chronic pancreatitis in recent years. B-mode ultrasound and CT scan can show that the pancreas is enlarged or shrunken, and in some cases, calcified foci, stones or cysts can be found.