IgA 肾病及过敏性紫癜常引起严重的胃肠道不适,迄今原因未明。以往未报告 IgA 肾病伴小肠IgA 血管病,本文报告1例。患者男性,36岁,患 IgA 肾病(Berger 病)。因弥漫性腹痛及恶心呕吐4天入院。血清免疫电泳示IgG 明显降低(1.95mg/ml),IgM 轻度降低(0.45mg/ml),IgA 正常(1.15mg/ml)。 IgA nephropathy and allergic purpura often cause serious gastrointestinal discomfort, so far the reason is unknown. In the past did not report IgA nephropathy with small intestinal IgA vascular disease, this article reports 1 case. Male patient, 36 years old with IgA nephropathy (Berger’s disease). Due to diffuse abdominal pain and nausea vomiting 4 days admitted. Serum immunoelectrophoresis showed a significant decrease in IgG (1.95 mg / ml), a mild decrease in IgM (0.45 mg / ml), and a normal IgA (1.15 mg / ml).