Patients with atrophic gastritis will experience a deterioration of gastric function, but it cannot be said that atrophic gastritis is a deterioration of gastric function. 1. Atrophic gastritis is a chronic gastric disease caused by repeated damage to the epithelium of the gastric mucosa due to factors such as Helicobacter pylori infection or duodenal reflux, which ultimately leads to the atrophy of the intrinsic glands of the stomach, which may or may not be accompanied by intestinal chemotaxis and other changes. 2. Patients can be caused by atrophy of the intrinsic glands, gastric acid, pepsin and other substances to reduce secretion, so that the stomach’s digestion, absorption and peristaltic function is impaired, ultimately leading to the degradation of gastric function, the patient may be abdominal pain and bloating, postprandial satiety, early satiety, loss of appetite and other dyspeptic symptoms. 3. But it does not mean that atrophic gastritis is the degradation of gastric function, the degradation of gastric function is a manifestation of chronic gastritis, gastroduodenal ulcers, gastric polyps, gastric cancer and other gastric diseases, and finally may lead to the degradation of gastric function. Patients with atrophic gastritis are advised to seek timely medical attention and actively undergo treatment to avoid delays.