Patients with gastric ulcers have deeper damage to the gastric mucosa, and gastric ulcers are somewhat more severe than gastric celiac disease as far as pathologic changes are concerned. However, some patients with gastric celiac disease will have more severe symptoms than gastric ulcers. Gastric ulcer and gastric erosion are both damages to the gastric mucosa. Gastric erosion is a lesion that occurs on the surface of the gastric mucosa and usually only involves the mucous membrane layer, but gastric ulcer usually develops from gastric erosion, and the damage will involve the muscularis propria layer, and in severe cases, perforation may also occur. Therefore, in terms of pathological changes, gastric ulcers are somewhat more serious than gastric erosion. Gastric ulcer and gastric erosion patients usually have abdominal pain and bloating, acid belching, nausea and vomiting, loss of appetite and other discomforts, generally speaking, gastric ulcer patients will feel more obvious. However, due to the different physical condition of individuals, some patients react more strongly to the discomfort, and there may also be patients with celiac disease who have heavier symptoms than those with gastric ulcers. Patients with gastric ulcers and celiac disease are advised to seek prompt medical attention and actively receive treatment to avoid delaying their condition.