Chronic gastritis is not a contagious disease, so it is not infectious. Chronic gastritis is a disease caused by various pathological factors leading to mucosal damage, and it is directly related to Helicobacter pylori infection. The treatment mainly aims to eradicate Helicobacter pylori, alleviate symptoms, suppress gastric acid secretion, protect the gastric mucosa, and reduce the recurrence of the disease. Additionally, during treatment, attention should be paid to dietary adjustments, eating soft and easily digestible foods, and avoiding spicy and irritating foods. Appropriate outdoor exercise and maintaining a pleasant mood have a positive effect on the treatment of chronic gastritis.