Laparoscopic cholecystectomy (LC) is the surgical gold standard for benign gallbladder diseases and precancerous lesions, and is divided into two types of resections: paracolic (starting from the gallbladder duct) and retrograde (starting from the bottom of the gallbladder). Traditional open cholecystectomy is poorly targeted, traumatic, slow to heal, and prone to complications, resulting in high patient pain and poor postoperative recovery. Since the development of laparoscopic cholecystectomy, this procedure is rapidly gaining acceptance among surgeons and patients. Laparoscopic cholecystectomy (LC) is performed by inserting a special catheter into the peritoneal cavity, injecting about 2-5 liters of carbon dioxide, and then making 3-4 small 0.5-1.5 cm holes in your abdomen to dissect the structures of the gallbladder triangle, dissect and clamp the cystic duct and cystic artery, and then removing the entire gallbladder, including stones or polyps. If the gallbladder is too large, the gallbladder can be moved to the abdominal wall puncture port, the gallbladder can be incised, the bile can be sucked out by suction, or the stones can be clamped out, and the gallbladder can be removed after collapse. The gallbladder is then removed very carefully under laparoscopic manipulation. The operation takes about 30 minutes to 1.5 hours and is simple and safe. Technical advantages 1, small incision: tiny incision in the abdomen, 0.5cm to 1cm, basically no scars, known as “keyhole” 2, light pain: patients feel little pain, the operation takes intravenous anesthesia, the patient in a sleep state to complete the operation. 3.Fast recovery: It greatly reduces the damage to the organs and the interference with the function of the organs, so that the recovery time after surgery is shortened. 4.Short hospitalization time: Generally, you can get out of bed 6-8 hours after surgery, and you can eat after 12-24 hours of anal venting, and you can be discharged from the hospital in 3-5 days, and you can basically recover after a week, so the cost is relatively lower. 5.Low bleeding: almost no bleeding during the operation. The vision of minimally invasive surgery is clearer, and the vascular treatment will be finer, plus the use of ultrasonic knife and other advanced hemostatic instruments, which helps to reduce the amount of bleeding. Indications: 1. Symptomatic gallbladder diseases: gallbladder stones, gallbladder polyps, chronic cholecystitis, early acute cholecystitis, etc. 2, asymptomatic but comorbid gallbladder diseases: with diabetes mellitus, stable stage of cardiopulmonary dysfunction disease. 3.Gallbladder diseases that can easily cause gallbladder cancer: gallbladder stones older than 60 years old, huge stones (diameter >2cm), ceramic gallbladder, single gallbladder polyp with diameter of 5mm or more, rapidly growing gallbladder polyps, polyps with wide base, gallbladder neck polyps, etc.