Postoperative complications of potbelly cancer are commonly as follows: 1. bleeding, all surgeries may bleed, because there are invasive surfaces in surgery, so patients may be oozing and bleeding after surgery; 2. pancreatic fistula, fistula at the anastomosis between pancreas and intestine after surgery, and leakage of pancreatic and intestinal fluids. Pancreatic fistula is more harmful and may take longer to recover if not handled well; 3. Biliary fistula, abdominal adhesions, poor recovery of gastrointestinal function, and even incisional fat liquefaction and incisional duct infection are all very rare.