Atrophic gastritis plus C2 with erosion is not considered the most serious grade, but it should be treated promptly to prevent further aggravation of the disease. Atrophic gastritis C2 is atrophic gastritis according to the clinical examination results of the severity of the disease grading, generally clinical chronic atrophic gastritis will be divided into six types, respectively, C1, C2, C3 and O1, O2, O3. The six types are aggravated sequentially, with C2 indicating that the scope of atrophic gastritis has exceeded the gastric angle, involving the sinus and body parts of the stomach. Erythema indicates a limited superficial defect of the epidermis or mucosal epithelium resulting in ulceration that does not involve the deeper muscular layer, and is more mild than ulceration, not considered serious. However, patients should pay attention to chronic atrophic gastritis, it is recommended to go to a regular hospital for treatment, timely review after the completion of treatment, and develop good living habits to avoid recurrence.