Chronic gastritis is divided into chronic atrophic gastritis and chronic non-atrophic gastritis. Chronic non-atrophic gastritis, also known as chronic superficial gastritis, mainly presents symptoms such as upper abdominal distension, belching, acid reflux, nausea, vomiting, and indigestion. Gastroscope examination revealing redness, edema, or erosion of the gastric mucosa can diagnose chronic non-atrophic gastritis. The treatment primarily involves acid suppression, stomach protection, and enhancement of gastric motility, typically requiring about four to six weeks. It is also recommended to conduct a Carbon-14 breath test to determine if there is an infection with Helicobacter pylori; if the infection is positive, a 14-day treatment against Helicobacter pylori is necessary. Additionally, dietary considerations should focus on easily digestible foods, avoiding spicy, fried, barbecued, sweet, or cold foods. Smoking and alcohol consumption should be avoided, as well as foods like milk, soy milk, glutinous rice, and sweet potatoes.