Ovarian reserve is the term that refers to a woman'scurrent supply of ova and is associated with the reproductivepotential. The decline in fecundity with female age, long beforemenopause occurs, is a well-known phenomenon. Ovarianageing, more than uterine ageing, seems to play an importantrole. Ovarian reserve tests help to predict the response toexogenous gonadotropin stimulation and the likelihood ofsuccess with IVF and are widely accepted as an essentialelement of the evaluation of IVF candidates. These tests areimportant nowadays; pregnancy is increasingly beingpostponed, leading to infertility due to diminished ovarianreserve. These tests can be used to diagnose premature ovarian failure.