Whether drainage is needed after cholecystectomy should be analyzed in the context of individual circumstances. If there is excessive exudation of gallbladder fluid after the operation, timely drainage is needed; if the recovery after the operation is good and the exudation of fluid is significantly reduced, drainage is usually not needed. In some patients with gallbladder disease, after removal of the gallbladder, there is excessive exudation of fluid from the gallbladder, which is prone to bile leakage. Drainage is necessary in this case, aiming at smooth bile drainage and reducing the risk of postoperative biliary tract infection. However, some patients who have undergone cholecystectomy, with good postoperative recovery and relatively minor surgical trauma, without cholestasis as well as bile leakage, etc., drainage is generally not recommended, and regular observation is sufficient, but secondary infections should be prevented. If the cholecystectomy after the need for drainage should follow the doctor’s instructions, if there is any abnormality after surgery, contact the competent doctor.