Atrophic gastritis is usually not too serious, but it is a precancerous lesion and should be taken seriously. Atrophic gastritis is a relatively common digestive disease, due to Helicobacter pylori infection, improper use of medication, immune disorders and other causes of gastric mucosa repeated damage and then repair, resulting in gastric mucosal glands occurring in a wide range or limited reduction, atrophy and thinning of the mucosa and other conditions. Atrophic gastritis is generally not too serious, but this disease is a precancerous lesion of gastric cancer, which may be transformed into gastric cancer if not treated in time, so it needs to be taken seriously. Common symptoms of atrophic gastritis include loss of appetite, acid reflux, belching, nausea, vague pain in the stomach, dull pain, burning sensation, etc. Some patients may have no obvious symptoms, and the diagnosis can be confirmed by gastroscopy and other tests.