Chronic gastritis includes two types: chronic non-atrophic gastritis and chronic atrophic gastritis. The symptoms of both can be similar, such as upper abdominal pain, bloating, nausea, vomiting, acid reflux, and heartburn. Chronic atrophic gastritis tends to be more severe than non-atrophic gastritis. Over the long term, atrophic gastritis may lead to symptoms like fatigue, weight loss, loss of appetite, and even anemia. The main differentiation still requires gastroscopy and pathological examination. Under gastroscopy, chronic superficial gastritis mainly shows mucosal congestion and edema. In atrophic gastritis, due to gland atrophy, the submucosal blood vessels may appear as a net-like or petal-like pattern, and sometimes the mucosa may become granular. Pathological examinations can further clarify the diagnosis.