The relationship between the gene polymorphism of interleukin 17 A and prognosis of gastric cancer was investigated. 129 cases were included in the survival analysis,which were divided into the death group and the survival group. The genotypes of rs3748067 and rs17880588 were detected using gene sequencing method. There were 3 genotypes of T/T,C/T,C/C for rs17880588. And there were 2 genotypes of A/G and G/G for rs3748067. The frequencies of genotype and allele were compared between the survival group and t...