大量研究表明，A型萎缩性胃炎的发病与患者自身免疫有密切关系。这类胃炎的病人体内有抗胃壁细胞和抗内因子抗体，常合并VitB12缺乏，而导致巨细胞性贫血。该病以西方多见，女性发病率高于男性。A型萎缩性胃炎为自身免疫性疾病，胃底、胃体腺区明显萎缩，血清中抗胃壁细胞抗体 A large number of studies have shown that the incidence of A-type atrophic gastritis and patients with autoimmune are closely related. Such gastritis in patients with anti-parietal cells and anti-intrinsic factor antibodies, often combined with VitB12 deficiency, leading to giant cell anemia. The disease is more common in the West, the incidence of women than men. A type of atrophic gastritis is an autoimmune disease, gastric fundus, corpus gland area was significantly atrophy, anti-gastric parietal cell antibodies