Elective laparoscopic cholecystectomy generally does not require the placement of a drain, and emergency laparoscopic cholecystectomy generally requires the placement of a drain for drainage. Elective surgery because there is no inflammation of the gallbladder, bile duct and blood vessel injury rarely occurs during surgery, the risk of postoperative bile leakage and bleeding is low, and generally there is no need to place an abdominal drain to drain the trauma of the gallbladder bed. Emergency surgery gallbladder itself and the surrounding inflammation, especially some inflammatory edema is more serious, such as purulent cholecystitis or gangrenous cholecystitis or even gangrenous perforation of the gallbladder to peritonitis, cholecystectomy need to be placed in the gallbladder bed around the drainage tube drainage residual inflammatory exudate, so as to prevent postoperative gallbladder fossa accumulation of fluid, to prevent the postoperative abdominal cavity to further aggravate the infection. In addition, placing a drain can further observe the occurrence of bleeding and bile leakage. Of course, the specific need to place a drain needs to be decided by a professional doctor, it is recommended that the patient under the guidance of a professional doctor in conjunction with the patient’s own condition to make a judgment.