Anti-Mullerian Hormone is produced by granulosa cells of preantral and small antral follicles. It accurately reflects the size of the primordial follicle pool. Unlike FSH, AMH levels remain relatively stable throughout the menstrual cycle.
| Age Group | Low Reserve (<10th %ile) | Normal | High (PCOS risk) |
|---|---|---|---|
| < 30 years | < 15.0 | 15.0 - 45.0 | > 45.0 |
| 30 - 34 years | < 10.0 | 10.0 - 35.0 | > 35.0 |
| 35 - 39 years | < 5.0 | 5.0 - 25.0 | > 25.0 |
| 40 - 44 years | < 2.0 | 2.0 - 15.0 | > 15.0 |
AMH predicts response to IVF stimulation (oocyte yield) but DOES NOT accurately predict natural conception probability in unassisted reproduction. Do not test routinely for fertility assessment in young women not undergoing IVF.
Considerable variability exists between AMH assays. Many labs report in ng/mL. (To convert pmol/L to ng/mL, divide by 7.14). Values are mildly suppressed by combined oral contraceptives.
Anti-Müllerian hormone-based approach to controlled ovarian stimulation for assisted conception