Gallstone surgery usually removes the gallbladder, so if there is a recurrence after the surgery, it is also a stone in the bile duct, the time is not easy to say, most people will not recur after the surgery, some people may grow stones in the middle of the bile duct 5-6 years after the surgery, or even more than 10 years. 95% of common bile duct stones are due to gallbladder stones falling into the bile duct, 5% are primary in the hepatic bile duct, and stones formed in the bile duct become primary bile duct stones, and their formation is closely related to biliary tract infection, bile stasis, and biliary roundworms. Generally, bile pigment stones are predominant, and patients may also experience abdominal pain, mainly fever and jaundice may appear, which require timely examination and treatment at the hospital. Patients with gallbladder stones after surgery are advised to go to the hospital for annual checkups to prevent stones from appearing in the bile ducts.