AMH and polycystic ovary syndrome: The risk factors include young age (2, 3), body mass index (BMI) (4, 5), diagnosis of polycystic ovary syndrome (PCOS) (3, 6) high anti-müllerian hormone (AMH) levels (7, 8), large number and size of follicles in the ovary (8, 9), high serum estradiol (E2) concentrations (3, 9, 10) high number of retrieved oocytes (3, 9, 11), pregnancy following fresh embryo transfer (12), and a history of OHSS (13).