<prompt> Marker of low ovarian reserve in a premenopausal female:Small antral follicle sizeRaised LHFSH ratioDecreased inhibin ALow Anti - mullerian hormone levels  <response>: Markers for low ovarian reserve AMH: Best marker for the ovarian reserve is the AMH. Released from small antral and pre- antral follicles 0.5 ng Poor reserve 1ng Borderline reserve 3.3 ng high reserve , risk factor for OHSS in stimulated cycles high day 2 FSH most commonly performed test low inhibin B low antral follicle count: total number of antral follicles in both ovaries 