This document provides guidance on anti-Müllerian hormone (AMH) levels and their implications for fertility. It defines high AMH as over 3.0 ng/ml, normal AMH as over 1.0 ng/ml, low normal AMH as 0.7-0.9 ng/ml, low AMH as 0.3-0.6 ng/ml, and very low AMH as less than 0.3 ng/ml.