Comparison of BPA levels between PCOS and control women showed significantly higher urinary (3.34 ± 2.63 vs. 1.43 ± 1.57 ng/mL) [87], blood (1.05 ± 0.56 vs. 0.72 ± 0.37 ng/mL) [89] and follicular fluid (440.50 ± 63.70 vs. 338.00 ± 57.88 pg/mL) [97] levels of BPA in PCOS women than in controls with generally higher concentrations of BPA in urine and blood than in follicular fluid. The gene discussed is DST; the disease is polycystic ovary syndrome.