Similar to the non-PCOS population, our study suggests that baseline serum AMH levels positively predict the ovarian response in PCOS patients and also that higher AMH may have little effect on oocyte quality compared to medium high AMH levels or an increase in oocyte production related to higher AMH, which may counteract the decrease in oocyte quality in PCOS patients. This evidence concerns the gene AMH and polycystic ovary syndrome.