Due to overexpression of IL-6 associated with genital ulceration and uveitis (Talaat et al., 2014[27]), and considering the results of recent studies that NCOA5 haploinsufficiency is causing an increase in IL-6 expression (Sarachana and Hu, 2013[26]; Gao et al., 2013[10]), the CT genotype for rs2903908 polymorphism may also be causing NCOA5 haploinsufficiency. This evidence concerns the gene IL6 and Genital ulcers.