Biliary tract diseases are increasing year by year, while the traditional surgical methods are very traumatic and slow to recover, the emergence of ERCP has brought hope to patients and become the right hand of doctors. Due to its uniqueness in the diagnosis and treatment of biliary tract diseases, ERCP soon became an important diagnostic and therapeutic tool in biliary surgery, and is gaining more and more attention. Today, biliary diseases have become common and frequent in surgery, and many patients refuse treatment because they are afraid of surgery, unaware of the rapid development of medicine, many diseases have been treated in a minimally invasive or even non-invasive way, thanks to the progress of modern imaging and endoscopic surgery technology, which has brought good news to many patients with initial or even advanced biliary diseases. So, what kind of technology is ERCP? With the development of modern medicine, many surgeries that originally required open surgery have become minimally invasive or even non-invasive. For gallstones, we rarely perform open surgery anymore, and ERCP is an important treatment tool in minimally invasive surgery for biliary tract diseases such as bile duct stones. The ERCP technique is to insert the duodenoscope into the descending duodenum through the mouth and enter the bile duct and pancreatic duct through the duodenal papilla for imaging and other diagnostic operations. The duodenoscope is similar in appearance and structure to a gastroscope, and is a special endoscope for ERCP technique. The duodenal papilla is the opening of the bile duct and pancreatic duct in the duodenum, which is the outlet of bile and pancreatic juice. ERCP technology has been the gold standard for diagnosing bile duct and pancreatic duct lesions, while with the development of technology, it has evolved from a purely diagnostic technology to a comprehensive technology with a therapeutic focus. ERCP indications The main techniques of ERCP are duodenal papillary sphincterotomy (EST) + common bile duct stone removal, which is mainly applicable to the minimally invasive treatment of common bile duct stones, biliary pancreatitis and acute cholangitis; endoscopic nasobiliary drainage for bile drainage and bile duct flushing; endoscopic biliary stent placement for patients with benign and malignant bile duct and pancreatic duct strictures, of which the most treated are At present, ERCP has been carried out in our department for nearly 10 years, and more than 300 ERCP procedures have been successfully carried out, which has relieved the pain of many patients. In recent years, the number of pancreaticobiliary duct-related diseases has increased year by year, and the anatomy of the duodenal papilla is quite complex, involving several organs. Traditional surgical treatment of pancreaticobiliary duct diseases is not only traumatic and painful, with many complications and slow recovery, but also greatly increases the medical costs of patients. With the continuous improvement of endoscopic equipment and the improvement of patients’ requirements for surgery, retrograde cholangiopancreatography (ERCP) and related treatment via duodenoscopy have gradually replaced some surgical procedures. Compared with traditional surgical procedures, ERCP not only has a high success rate, less pain and trauma to patients, fewer complications, lower medical costs, and significantly shorter hospital stay, but is also popular among patients. Although ERCP is a technically difficult operation, it is very traumatic for the patient, who can go down to the floor after the operation, and if pancreatitis does not occur, he can eat the next day, and jaundice and hyperthermia will soon subside. Surgeons have a great advantage in performing ERCP, but because of the complexity of the patient’s condition, ERCP alone cannot completely solve the problem, which requires other surgical methods to treat the patient. The “triple-laparoscopic” treatment option is laparoscopy, duodenoscopy and choledochoscopy. For simple bile duct stones, ERCP is completed (called one-scope surgery); for bile duct stones combined with gallbladder stones, ERCP bile duct extraction is performed first, followed by laparoscopic cholecystectomy (called two-scope combined surgery); for large bile duct stones that are difficult to retrieve, ERCP is placed first to drain the nasobiliary duct, followed by laparoscopic cholecystectomy and choledochotomy to retrieve the stones (called three-scope combined surgery). The surgery is all minimally invasive. What is the post-operative diet for gallstones? Each meal should be seven or eight minutes full (especially dinner), and keep the weight within the ideal range. Pay attention to a reasonable combination of meat and vegetables, and try to reduce the fat and cholesterol content in food. Normally, you should consume more vegetable oils and avoid animal oils. Eat less fried food and animal offal, eat more fresh vegetables and fruits, and eat more foods with high fiber content, including corn, millet, sweet potatoes, oats, buckwheat and other coarse grains to promote bile excretion.