选择性IgA 缺乏症(SlgAD)是指体液IgA 含量极低,其他免疫球蛋白含量正常,T 细胞免疫功能也正常的一种抗体免疫缺陷病。我们对SIgAD和IgA 低下症同时检测血、尿七种元索,并探讨其相互关系。病例选择按SIgAD 及IgA 低下症诊断标准诊断,SIgAD15例,男9例,女6例,男∶女为3∶2;IgA 低下组14例。两组年龄为1.5～14岁,均为本 Selective IgA deficiency (SlgAD) is an antibody immunodeficiency disorder with very low levels of IgA in body fluids, normal levels of other immunoglobulins, and normal immune function of T cells. We tested both the serum and urinary indices of SIgAD and IgA hypothyroidism and explored their relationship. Case selection according to SIgAD and IgA diagnosis of low diagnostic criteria, SIgAD15 cases, 9 males and 6 females, males and females is 3: 2; IgA low in 14 cases. Two groups of 1.5 to 14 years old, are based