Chronic non-atrophic gastritis, also known as superficial gastritis, is a type of chronic gastritis, a chronic inflammation of the gastric mucosa caused by a variety of etiologies. Clinical symptoms are lacking in specificity, and most patients are asymptomatic. There may be discomfort, fullness, vague pain, burning pain in the upper and middle abdomen, and the pain is not rhythmic, usually heavy after eating, and there are also often indigestion symptoms such as loss of appetite, belching, acid reflux, and nausea. In severe cases, epigastric pain may occur, and most patients with chronic superficial gastritis present with this symptom. Most epigastric pain is irregular and not related to diet. The pain is usually diffuse upper abdominal burning pain, vague pain, and distension. It is often aggravated by eating cold, hard, spicy or other irritating foods, and is rarely associated with climate change. Acute onset patients often have bleeding gastric mucosa erosion, vomiting of red fluid, coffee-like stools, etc. The main diagnostic modality for superficial gastritis relies on gastroscopy and pathological biopsy to confirm the diagnosis, which reveals congestion and erosion of the gastric mucosa, but usually no ulcers are formed. The etiology of superficial gastritis is quite diverse, and the treatment and lifestyle of different etiologies may differ, and may be related to H. pylori, duodenal-gastric reflux, autoimmunity, age factors, and lack of nutritional factors in the gastric mucosa. Therefore, when some of the above symptoms occur, a clear diagnosis should be made at a hospital in time, and the cause should be identified and then treated under the guidance of a clinician to avoid delays.