Atrophic gastritis and non-atrophic gastritis have different causes, symptoms and severity. 1. Atrophic gastritis: a symptom caused by repeated damage to the epithelium of the gastric mucosa leading to glandular atrophy. The cause of the disease is related to Helicobacter pylori infection, duodenal reflux, gastric mucous membrane damage and so on. Patients show symptoms such as loss of appetite, body wasting, anemia and so on. Atrophic gastritis is more serious than non-atrophic gastritis, and in the case of intestinalization with atrophy, it is a kind of precancerous lesion, which may eventually lead to the appearance of gastric cancer. 2. Non-atrophic gastritis: Non-atrophic gastritis does not have glandular atrophy, and the causes include Helicobacter pylori infection, long-term consumption of rough and stimulating food, and bad mood. The main patient manifests as abdominal distension, burping, belching, acid reflux and other symptoms mainly, mostly aggravated after meals. Non-atrophic gastritis, through treatment can control the symptoms, the prognosis is relatively good. It is recommended to avoid drinking and smoking, eat regularly, do not overeat, if repeated discomfort, it is recommended to timely hospital treatment.