Choledocholithiasis stones can usually be removed if they are over 6 mm, but the size of the choledocholithiasis stone is not the only criterion guiding the treatment, which should mainly be determined by the presence or absence of symptoms and the presence or absence of liver function abnormalities. Because choledocholithiasis occurs in the common bile duct, if the choledocholithiasis stone is too large, it will affect the biliary pathway, causing biliary obstruction, causing other diseases, and in serious cases, it will also cause confusion, depression, or even shock and other life-threatening symptoms, and if symptoms such as abdominal pain and fever occur, or if it leads to liver function abnormality, it is necessary to carry out surgery regardless of the size. Choledocholithiasis should be well taken care of after surgery, in order to avoid lung infection, try to get out of bed more activities to promote intestinal function. It is recommended to choose a regular hospital for the surgery and follow the doctor’s instructions for postoperative care. Maintaining good habits and mentality, especially a light diet and regular meals, can reduce the incidence of choledocholithiasis.