Pancreatitis is the result of a combination of multiple causes, so its cause is also very complex. Acute pancreatitis is an acute inflammatory disease caused by pancreatic enzymes digesting the pancreas and its surrounding tissues, mainly manifesting as edema, hemorrhage and necrosis of the pancreas, etc. The pathogenesis is mostly caused by the following. Biliary system diseases, such as bile duct inflammation, stones, and some are caused by poor drainage of the pancreatic duct caused by poor diet, which has been accumulating and causing the rupture of the pancreatic vesicles and the onset of the disease. In daily life, there are many patients with hyperlipidemia and hypercalcemia, and the condition is prolonged and may lead to pancreatitis, which is caused by fat embolism of the pancreatic vessels, which then leads to local ischemia, and compensatory capillaries then dilate, damaging the vessel walls and leading to difficulty in the drainage of pancreatic juice, and the resulting stones can block the pancreatic duct and cause pancreatitis. Chronic pancreatitis is usually caused by recurrent episodes of acute pancreatitis, which is a chronic progressive disease of the pancreas. Therefore, pancreatitis may be a problem of our own pancreas or it may be a complication of the pancreas due to other diseases. We can get the diagnosis through symptoms and laboratory auxiliary tests, and based on the corresponding causes, we can carry out targeted treatment to achieve the best results.