The back pain caused by erosive gastritis may be caused by the radiating pain produced by the damaged gastric mucosa and the reflux of the contents, not only the pain in the lesion area, but also the pain in the radiating area, such as the back, etc. The pain is caused by the damaged gastric mucosa and the reflux of the contents. 1. Damage to the gastric mucosa: erosive gastritis will have different degrees of gastric mucosal damage, stomach pain and discomfort, the pain may radiate to the back, shoulders, chest and so on, thus causing the symptoms of back pain. 2. Reflux of contents: erosive gastritis may cause bile reflux, gastroesophageal reflux, etc., which may easily lead to pain radiating to the back, and symptoms such as dyspnea may also occur. Patients with celiac gastritis with back pain should pay attention to it, seek medical attention in time, clarify the cause of the disease under the guidance of professional physicians, and carry out treatment.