1.What is acute pancreatitis? Acute pancreatitis is an acute chemical inflammation of the pancreas caused by the activation of pancreatic enzymes in the pancreas, which causes the pancreatic tissue to digest itself. The causes of acute pancreatitis are suspected to be many and there are regional differences. The common causes are biliary tract diseases (such as stones in the lower bile duct) pancreatic duct obstruction (caused by tumor compression such as pancreatic cancer and liver cancer), alcoholism and overeating, surgical and trauma, endocrine metabolic disorders. Infection, drug tone, and other hanging factors. One of the most common causes is due to biliary tract disease, accounting for about 85% of total cases. 2, acute pancreatitis has those manifestations? Clinical manifestations are sudden onset in the epigastrium or epigastrium right in the middle of persistent knife-like or colic, stabbing pain, with paroxysmal intensification, mostly radiating to the left anterior lumbar region; pain is evident in the lying position or after eating, often accompanied by nausea and vomiting and fever. On examination, there is pressure pain in the upper abdomen, and there may be mild abdominal muscle tension and rebound pain. In some patients with severe disease, the abdominal pain may continue for a longer period of time due to the spread of each exudate, which may cause total abdominal pain. A very small number of elderly and frail patients may have no abdominal pain or mild abdominal pain. 3.What should I do if I have acute pancreatitis? Once the diagnosis is clear, treatment such as fasting, anti-infection and inhibition of pancreatic secretion should be given immediately. For biliary acute pancreatitis caused by biliary tract disease, ERCP (retrograde cholangiopancreatography via endoscopy) is a newly developed minimally invasive technique that has proven to be clinically effective in treating biliary acute pancreatitis. With the help of a thin, long and soft endoscope that can be connected to a monitor – an electronic duodenoscope – the surgeon can both see inside the body and use the endoscope to perform some therapeutic operations inside the body. Endoscopic sphincterotomy is a procedure in which the gastrointestinal endoscope is fed through the mouth, through the esophagus, stomach, and duodenal bulb to the duodenal papilla (the outlet of the common bile duct) in the descending duodenum; the sphincterotomy knife is introduced into the duodenal papilla with the therapeutic channel of the gastrointestinal endoscope and inserted into the common bile duct; the catheter of the knife is injected with a contrast agent for selective cholangiography, which can be clearly seen on the monitor connected to the X-ray machine The condition of the bile duct and the position of the incision knife can be clearly seen on the monitor connected to the X-ray machine. After cutting the duodenal papillary sphincter, the outlet of the common bile duct is opened to the proper size and the stone is removed to keep the common bile duct and pancreatic duct open. It is popular among patients because it does not require an incision, is less invasive, and has a much shorter hospital stay.