It is not true that choledocholithiasis stones should not be operated on as much as possible. The treatment of choledochal stones is still mainly surgical, and if there is a biliary tract infection, elective surgery should be performed after the infection is controlled. In the case of simple choledochal stones with patent upper and lower bile ducts (no strictures or other pathology), choledochotomy for stone removal and T-tube drainage are often used for treatment. If there are also gallbladder stones and cholecystitis, cholecystectomy should be performed together. During the operation, the stones should be removed as much as possible, and if conditions do not permit, a rubberized T-tube can be left in the bile duct, and postoperative imaging or cholangioscopy is performed. In addition, in recent years, in the case of choledocholithiasis stones that are fewer in number (about 1-3) and smaller in diameter (less than 15 mm), they can be extracted via duodenal endoscopy after the indications for treatment have been grasped. In case of choledocholithiasis, the treatment plan should be decided after a thorough evaluation by a doctor.