To take a activity examination on 116 cases of six kinds of patients with pathologic tongue fur and 51 people with normal tongue fur, and examne RBC C3b receptor garland rate(RCR)、immunity compound garland rate and lymphocyte acid-a- naphthalene-acetate-esterase(L-ANAE).The result suggested that RCR in all groups except thick and yellow fur, obviously lower than normal control group(P