VEGFA and polycystic ovary syndrome: Using ten SNPs as IVs for PCOS, we demonstrated that genetically predicted PCOS is positively associated with IL-2 and VEGF levels through IVW (OR = 1.257, 95% CI = 1.022 – 1.546, P = 0.030 and OR = 1.112, 95% CI = 1.006 – 1.229, P = 0.038, respectively).