About the hormone AMH

Anti Mullerian Hormone (AMH) is a hormone produced in the early small follicles in the ovaries (antral follicles). AMH can be measured in a blood sample and is used to estimate the number of eggs in the ovaries - the 'ovarian reserve'.

A high AMH value is indicative of many follicles in the ovary and a young biological age. It is a sign of a good ovarian reserve. Conversely, a low AMH value indicates that the ovary has an older biological age and a lower egg reserve.

By using AMH in combination with Follicle Stimulating Hormone (FSH) and ultrasound scans of the ovaries (AFC, antral follicle count), we can assess the woman's ovaries before fertility treatment. AMH is very constant throughout the menstrual cycle and is therefore a more useful measure than FSH, which varies during the cycle.

In Denmark AMH is measured in pmol/L. In some countries AMH is measured in ng/ml. Both units of measurement are listed in the table.

If AMH value is very high, it may be a sign of Polycystic Ovarian Syndrome (PCOS). This is best assessed in combination with an ultrasound scan, and other conditions that characterize PCOS.

AMH level pmol/l AMH level ng/ml* Effect for fertility treatment
Above 7 Above 1,0 Normal value. Good possibilities for treatment.
Between 3 - 7 Between 0,4 - 1,0 Low value. Treatment may be possible.
Below 3 Below 0,4 Very low value. Very few eggs at stimulation. Pregnancy chance significantly lowered.

*This unit is normally not used in Denmark