In clinical practice cyst surgery usually takes 2-3 hours or even less to end, and the common cases are as follows: 1. Pancreatic pseudocysts, the surgery can end in about 2 hours. It usually takes no more than 3 hours. This disease is usually secondary to severe necrotizing pancreatitis. Generally, pseudocysts with a diameter of more than 6 cm and a duration of more than 3 months can cause local compression and even cause symptoms of nausea, nausea and vomiting. Patients can consider internal drainage surgery of cyst and intestinal canal or stomach, only need to anastomosis of cyst and stomach wall or intestinal canal to achieve the purpose of treatment; 2, liver cyst, usually using laparoscopic cyst opening and drainage, smooth anesthesia, pneumoperitoneum after the establishment, under the direct view of lumpectomy to remove the cyst surface anterior wall can achieve the purpose of treatment, so the operation time is shorter.