We found that the heterozygous genotypes of FCRL3 rs11264799 and TNFAIP3 rs10499194 significantly decreased the risk of ITP compared with homozygous major alleles (p = 0.029 and p = 0.001, respectively, Table 4). Here, TNFAIP3 is linked to autoimmune thrombocytopenic purpura.