What is the normal range for AMH levels?

Aug 24, 2022 Source: Cainiu Health
Dr. Pan Yongyuan
Introduction
The normal reference range for AMH varies among hospitals; however, the majority of hospitals define the normal range as 2.1–6.9 ng/mL. Ovarian function is age-dependent—older age generally correlates with declining ovarian function. A higher antral follicle count indicates better ovarian reserve. Within the reproductive age range, a higher AMH level typically reflects a greater number of antral follicles, whereas a very low AMH value may suggest diminished ovarian reserve.

AMH (Anti-Müllerian Hormone) is a hormone secreted by Sertoli cells in the testes of males and granulosa cells in the ovaries of females. What, then, constitutes a normal AMH level?

Normal Range for AMH Levels

AMH—also known as Anti-Müllerian Hormone—is produced by small antral follicles, preantral follicles, and granulosa cells within the ovary. When ovarian function is robust, the number of antral follicles increases, leading to higher AMH levels. The reference range for normal AMH values varies slightly among laboratories; however, most hospitals define the normal range as 2.1–6.9 ng/mL. Ovarian function declines with age—older women generally exhibit poorer ovarian function—and a greater number of antral follicles indicates better ovarian reserve capacity. Within the reproductive years, AMH levels typically fall within the normal range; higher AMH values suggest a larger pool of antral follicles, whereas very low values may indicate diminished ovarian reserve.

An AMH level below 2.0 ng/mL suggests the onset of declining ovarian function. An AMH level below 0.7 ng/mL indicates severely diminished ovarian reserve and significantly reduced chances of pregnancy. Conversely, an AMH level above 6.8 ng/mL may suggest polycystic ovary syndrome (PCOS).

Measuring AMH provides insight into a woman’s ovarian function and helps assess her reproductive potential. As age advances, ovarian function gradually declines; notably, AMH levels typically begin to decrease after age 35. We hope this information is helpful!


Related Articles

View All