The most common cause of pancreatic atrophy is chronic pancreatitis, which is mainly characterized by pancreatic atrophy, as well as calcification of the pancreas and pancreatic duct stones. When pancreatic calcification and pancreatic duct stones appear, abdominal pain will occur, and the pain will be continuous and accompanied by radiating pain in the lower back, and the pain will last for a long time. In addition to pancreatic calcification, chronic pancreatitis can also be characterized by endocrine and exocrine insufficiency, and diarrhea when exocrine insufficiency is present. When endocrine insufficiency is manifested as diabetes mellitus, that is, elevated blood sugar, which requires the application of insulin to control blood sugar.