After cholecystectomy, there is a possibility of gallstones in the bile ducts, including primary and secondary gallstones. Gallbladder stones are a common form of cholelithiasis, and its main clinical manifestation is epigastric discomfort, which may induce biliary colic in the right upper abdomen when eating greasy food. Currently, the main examination means for gallbladder stones is ultrasound, and surgery is performed after a clear diagnosis. Conventional surgery is laparoscopic cholecystectomy. Choledocholithiasis after cholecystectomy can, on the one hand, be secondary, i.e., from the gallbladder, since no choledochotomy will be performed without indication, and stones from the gallbladder fall into the common bile duct during removal of the gallbladder. On the other hand, there may be primary stones in the bile ducts, as preoperative examination failed to detect bile duct stones. The discovery of bile duct stones should be treated aggressively so that they do not lead to serious complications.