The GG, GT and TT genotype frequencies of NEIL2 rs8191664 were 85.9%, 11.8% and 2.3% in the normal healthy controls; 79.8%, 17.5% and 2.8% in CIN III and 72.3%, 25.3% and 2.5% in CSCC, respectively. Here, NEIL2 is linked to uterine cervix carcinoma in situ.