Furthermore, it was shown that rs12255372 has a significant association with susceptibility to T2DM in the world population.[9] On the other hand, the results of SNPs in TCF7L2 in the Chinese population yielded conflicting results.[9–11] In addition, results about the SNPs of TCF7L2 in relation to T2DM in the Yao population of China are completely lacking. Here, TCF7L2 is linked to type 2 diabetes mellitus.