Of the four IL17A SNPs screened in this study, two IL17A SNPs (rs8193036 and rs2275913) were associated with susceptibility to inflammatory diseases, such as pediatric asthma (rs8193036, risk CC genotype, Taiwan) [39], ulcerative colitis (rs2275913, risk A allele, Japan) [40] and rheumatoid arthritis (rs2275913, risk GG allele, Norway and New Zealand) [41]. The gene discussed is IL17A; the disease is ulcerative colitis.