Chronic gastritis can cause dysfunction of the gastrointestinal tract, leading to bad breath. Additionally, it can manifest symptoms of indigestion such as pain and acid reflux in the upper abdomen, and decreased appetite. Atrophic gastritis may present with anemia and diarrhea. The primary treatment principles for chronic gastritis should focus on eliminating the cause, reducing recurrence of inflammation, and improving the patient's quality of life. Medications that inhibit gastric acid secretion, protect the gastric mucosa, and promote gastrointestinal motility are used for treatment.