Biliary reflux gastritis, erosion also belongs to a chronic gastritis, but this chronic gastritis has erosion of the gastric mucosa and bile reflux, so it can be called biliary reflux gastritis with erosion. In normal people, bile is mainly discharged through the bile duct to the duodenum, then peristalsis down to the small intestine, and finally to the intestine, where it is excreted with feces. When a patient with chronic gastritis has gastrointestinal dysfunction, bile may reflux upward into the stomach lumen, causing bile reflux gastritis. When the patient’s anti-reflux defense mechanism is weakened, bile may also reflux into the esophagus, causing reflux esophagitis. In celiac disease, the foci are usually punctate or flaky and are confined to the mucosa and do not reach the muscular layer. For patients with bile reflux gastritis with erosion, it is recommended to give drugs that inhibit gastric acid secretion, combined with gastrointestinal motivational drugs and drugs that promote mucosal repair, and to consult a gastroenterologist for specific medications.