Chronic non-atrophic gastritis, also known as chronic superficial gastritis, is a form of chronic gastritis, a chronic inflammation of the gastric mucosa caused by a variety of etiologies. In most cases, chronic non-atrophic gastritis is not serious, but a few patients can be transformed into chronic atrophic gastritis. Common causes of chronic non-atrophic gastritis include smoking, alcohol consumption, irritating drugs and foods, Helicobacter pylori infection, and psychiatric factors. Most patients can be cured by treatment or elimination of the causes and reasonable diet, and this condition is not serious. Patients with chronic atrophic gastritis may have varying degrees of intestinal glandular metaplasia, which inevitably leads to local epithelial cell hyperplasia and, if heterogeneous hyperplasia occurs, may lead to cancer, which is relatively more serious. Therefore, patients with chronic atrophic gastritis should be followed up regularly in order to clarify the progress of the disease and to treat it in a timely manner. Therefore, it is not possible to generalize whether chronic non-atrophic gastritis is serious or not. In general, chronic non-atrophic gastritis has a good prognosis and is not serious, but if it is transformed into chronic atrophic gastritis, it should be treated promptly under the guidance of a physician to avoid aggravation.