AMH and polycystic ovary syndrome: The increased level of AMH in PCOS could be due to more median density of tiny follicles (including primordial and primary stage), which can be sixfold greater in anovulatory PCOS than in normal ovaries, or because these women may actually be born with a large OR [26], or due to over recruitment of follicles into the growing stages or slower progression during the later stage of follicle development [26-28].