AMH and polycystic ovary syndrome: AMH appears to correspond well with antral follicle counts (AFCs) and ovarian response to hyperstimulation in IVF.10, 11, 23 The increased serum basal AMH concentrations in PCOS have been explained by the increased number of small ovarian follicles responsible for AMH secretion.20 We also demonstrated that FF AMH levels are greater in women with PCOS compared to normo-ovulatory women, which may suggest increased per follicle AMH secretion in PCOS.24