Pancreatogenic abdominal pain is one of the symptoms of chronic pancreatitis (chronic pancreatitis), which is a persistent and permanent damage of pancreatic tissue and function caused by various factors. The pancreatic gland shows different degrees of alveolar atrophy, pancreatic duct deformation, fibrosis and calcification, and different degrees of pancreatic exocrine and endocrine dysfunction, clinically manifested as abdominal pain, diarrhea or steatorrhea, wasting and malnutrition and other symptoms of pancreatic insufficiency. Typical chronic pancreatitis is relatively rare in China, and it is difficult to confirm the diagnosis. The diagnosis of pancreatic origin abdominal pain caused by chronic pancreatitis: 1. abdominal pain As many as 90% of patients have abdominal pain of varying degrees, with intervals of several months or years, as a persistent pain. It is mostly located in the upper and middle abdomen and is a dull or vague pain. It can also be to the left or right and often radiates to the back. The site of pain is consistent with the site of inflammation. According to experiments, when the head of the pancreas is stimulated with electricity, the pain occurs in the right upper abdomen, and when the tail of the pancreas is stimulated, the pain is in the left upper abdomen. In addition to radiation to the back, a few radiated to the lower chest, kidney area and testes. The diaphragm is involved and there may be radiating pain in the shoulder. The pain is persistent and deep in. In mild cases, there is only a pressure-heavy or burning sensation. Spasm-like sensation is rarely present. Alcohol consumption, high-fat and high-protein diet may induce symptoms with nausea and vomiting when the pain is severe. The abdominal pain in these patients is often characterized by posture. Patients prefer to curl up in the lying, sitting or forward position, and abdominal pain is aggravated when lying down or standing upright. 2, diarrhea Mild patients do not have diarrhea symptoms, but severe patients with excessive destruction of glandular vesicles, secretion is reduced, that is, the symptoms. It is manifested as abdominal distension and diarrhea, with stools 3 to 4 times a day, large amount, light color, glossy and bubbly surface, malodorous, and mostly acidic reaction. Due to impaired digestion and absorption of fat, the amount of fat in the stool increases. In addition, there are still undigested muscle fibers in the feces. Due to the loss of large amounts of fat and protein, the patient shows signs of wasting, weakness and malnutrition. 3.Other symptoms of indigestion such as abdominal distension, loss of appetite, nausea, weakness, wasting and other symptoms are common in patients with severe pancreatic impairment. If the pancreatic islets are involved, it can affect the glucose metabolism and about 10% have obvious diabetic symptoms. In addition, jaundice may be present in patients with combined biliary system disease or biliary obstruction. Abdominal masses may be palpable in those with pseudocyst formation. A small number of patients may develop pancreatic ascites. In addition, chronic pancreatitis may present with upper gastrointestinal bleeding. The reasons for this are: pancreatic fibrosis or cyst formation compressing the splenic vein, which can form portal vein thrombosis causing portal hypertension. Patients with chronic pancreatitis have a higher probability of peptic ulcers in combination. Alcoholic gastric mucosal damage can occur in patients with persistent alcoholism. Multiple fat necrosis can occur in patients with chronic pancreatitis. Subcutaneous fat necrosis is often found in the extremities and can form hard nodules under the skin.