Gastritis to the development of gastric cancer is a chronic process that varies significantly from person to person and takes about 1-2 years. Commonly, chronic atrophic gastritis is a risk factor for the development of gastric cancer. Patients should have recurrent epigastric pain, irrational diet structure, and progressive development will have loss of appetite and weight loss. If the tumor cells develop directly, it will lead to weight loss and anemia. If diagnosed early, stomach cancer should be promptly treated by surgery. Gastric cancer most commonly occurs in the sinus region, and most of the distal stomach is usually removed. After surgery, symptomatic treatment such as anti-infection, intravenous nutritional support and regular gastroscopy should also be performed. Therefore, if chronic atrophic gastritis is found during the usual health checkup, gastroscopy should be reviewed every six months and surgery should be performed if necessary.