Knowledge Centre
Hormones & blood testsDraft: awaiting clinical review
Anti-Müllerian hormone (AMH)
Reflects the number of eggs remaining (ovarian reserve). It is not a fertility test on its own.
Overview
AMH is produced by small developing follicles in the ovaries. Levels fall gradually with age.
It can be measured on any day of the cycle.
What is well established
- AMH is useful for predicting how the ovaries are likely to respond to IVF stimulation.
- A low AMH does not mean you cannot conceive naturally. Research in women trying to conceive naturally found that AMH did not predict their chance of conceiving.
- A high AMH is commonly seen in PCOS.
- Results vary between laboratory methods, so they should be interpreted against the reporting laboratory's range.
Uncertain or emerging evidence
- AMH cannot accurately predict when an individual will reach menopause.
This guide is general information and does not replace advice about your own circumstances. Clinical review pending.