Inflammation at the anastomotic site is a common complication after gastric cancer surgery and is usually not serious. The so-called interstitial edema refers to the inflammation and congestion of the microscopic mucous membrane site. After gastric cancer surgery, the organism will repair the anastomosis site automatically, and in the process of repairing, because the tissues of stomach are not consistent with the tissues of intestines, inflammation is very easy to appear in the process of anastomosis, and of course, the lack of attention to daily diet leads to the stimulation of the anastomosis site by celiac disease, which will also lead to the emergence of inflammation and edema. If the patient does not suffer from nausea, heartburn and other uncomfortable symptoms, then there is no need to worry too much, but if discomfort occurs, it is recommended to do further biopsy to prevent the recurrence of cancer cells. It is recommended to have regular checkups after gastric cancer surgery and communicate with doctors in time when problems occur.