Complications of laparoscopic cholecystectomy. Laparoscopic cholecystectomy is a minimally invasive surgery and a gold standard surgery for gallbladder removal. Postoperative complications may occur, including vascular injury, intestinal injury, gas-induced hypercapnia or biliary bile duct injury, and other manifestations, as well as incisional infection that can cause abscesses in the abdominal cavity. The complications are as follows: 1. Biliary tract injury is the most serious complication of laparoscopic cholecystectomy, the patient has obvious postoperative abdominal pain and yellow staining of the skin and sclera, which often requires emergency open surgery. The incidence of biliary tract injury is higher than that of open surgery, but as laparoscopic cholecystectomy is carried out more and more, the chance of biliary tract injury is significantly lower than before; 2. For more complicated gallbladder diseases, such as gallbladder suppuration, gangrene other than the surrounding tissue adhesions are tighter and cause duodenal injury, the chance of postoperative bleeding is higher than the incidence of simple gallbladder stones; 3. Abdominal bleeding. Patients appear pale, low blood pressure, rapid heart rate or a significant decrease in laboratory hematocrit after surgery, and a large amount of fresh blood from the drainage tube during postoperative transfusion; 4, laparoscopic pneumoperitoneal embolism. Postoperative pain in the lower back, shoulder soreness, or subcutaneous pressure sensation, right heart scattered blood sensation, scattered blood squeaking, medically known as subcutaneous emphysema, relieved by oxygen for two days; 5, incisional infection leading to abdominal abscess.