Total gastric resection is one of the ways to treat gastric cancer. After total gastric resection, some complications may occur, mainly including five common complications, as follows: First, anastomotic fistula: It is a more serious complication after gastric cancer surgery, but its incidence has been reduced in recent years due to the correct use of anastomosis and the improvement of surgical skills. Second, gastric bleeding: Most of them are anastomotic bleeding. The reason is that when the stomach wall is sutured, the blood vessels are not completely sutured, especially if the whole layer is sutured too shallowly or not tightly, plus the inflammation and edema of the tissue, gastric bleeding will easily occur. Third, gastric dysfunction: it is also one of the more common complications after gastric cancer surgery, and often the more thorough the surgery is, the greater the possibility of occurrence. Fourth, intestinal obstruction: including functional intestinal obstruction and mechanical intestinal obstruction. Fifth, other complications: including postoperative infection, reflux esophagitis, dumping syndrome, anemia after total gastrectomy, etc.