对２０例口腔扁平苔藓患者进行了红细胞免疫功能的测定并与２０例健康人进行对照。结果显示：口腔扁平苔藓患者红细胞Ｃ３ｂ受体花环率明显低于正常对照组，而红细胞免疫复合物花环形成率明显高于正常对照组，提示在口腔扁平苔藓的发病过程中，红细胞免疫系统可能参与其中并起了一定的作用。 Erythrocyte immune function was measured in 20 patients with oral lichen planus and compared with 20 healthy people. The results showed that the rosette of erythrocyte C3b receptor in oral lichen planus was significantly lower than that in normal control group, while the rosette formation rate of erythrocyte immune complex was significantly higher than that in normal control group, suggesting that erythrocyte immune system may participate in the pathogenesis of oral lichen planus Which has played a role.