Acute pancreatitis, as the name suggests, is a digestive disease caused by acute inflammation of the pancreas. Under normal circumstances, the pancreatic juice secreted by the pancreas is not active in other tissues, but it is converted into digestive enzymes by the action of intestinal kinase. If the body digests it and it is blocked by some substances when it is excreted from the body, pancreatitis can occur. This digestive enzyme will digest the pancreas and surrounding tissues causing acute inflammation, which leads to the onset of acute pancreatitis. Acute pancreatitis is an inflammatory reaction in which pancreatic enzymes are activated in the pancreas due to a variety of causes, causing digestion, edema, bleeding and even necrosis in the pancreatic tissue itself, and has a series of characteristics such as rapid onset, obvious symptoms and critical condition. The severity of acute pancreatitis varies, if the acute pancreatitis is mild, pancreatic edema will appear, and the condition will be self-limiting, and the prognosis is very good. However, in more serious cases, the pancreas will bleed and necrosis, and lead to secondary infection causing peritonitis, shock or even death, which is a severe acute pancreatitis. The acute pancreatitis attack to the hospital in time to do systematic treatment, generally can achieve the purpose of healing, but the attack can not be delayed, after the delay will become chronic pancreatitis is very difficult to completely cure.