Abdominal drains are usually placed after gallbladder surgery when the inflammation of the gallbladder is more severe, the exudation is more obvious or the patient has abnormal coagulation function or cirrhosis. Without special circumstances, the gallbladder drainage tube can be removed on the second postoperative day when the drainage flow is less than 20 ml and there is no tendency for it to continue to increase. In some patients, the drainage flow is more, and it is considered to be ascites, so the tube can be clamped first, and the ascites will be absorbed when the pressure in the abdominal cavity increases, and the patient has no discomfort, fever, etc., and the tube can be removed after one day’s observation. Some patients have more gallbladder drainage tube, darker color, consider abdominal blood seepage, continue to stay in the case of conservative treatment is effective, and regular review of ultrasound, hematocrit, the condition of the symptomatic relief, observation for two days can be removed.