Chronic gastritis may develop into gastric cancer if the root cause is not cured, but it depends on the situation. Various chronic gastric mucosal inflammatory lesions caused by different etiologies of chronic gastritis are mostly caused by irregular diet, frequent consumption of irritating foods, Helicobacter pylori infection and other factors. If chronic gastritis is not treated well for a long time, the inflammatory factor stimulates the gastric mucosa for a long time, with the further development of the condition, it may develop into atrophic gastritis, and then there will be the possibility of cancer. But this also needs to go through a long process, and not all patients with atrophic gastritis will develop into cancer. In conclusion, for patients with chronic gastritis, they should actively cooperate with doctors to standardize the treatment and regularly review the gastroscopy. Normally life must adjust the diet structure, it is recommended to light and easy to digest diet, eat less spicy stimulation and other foods.