What is the test?
An AMH test measures anti-Müllerian hormone, produced by cells surrounding small developing follicles in the ovaries. It is a simple blood test.
What does it assess?
AMH gives an estimate of ovarian reserve — the number of small follicles currently available — and helps predict how the ovaries may respond to IVF stimulation drugs.
Who might need it?
People planning IVF or egg freezing, those with irregular cycles, or anyone a clinician feels would benefit from ovarian reserve information.
When is it performed?
AMH stays fairly stable through the cycle, so it can usually be taken on any day. Some hormonal contraception can lower results slightly.
How is the test carried out?
A small blood sample is taken from the arm and sent to a laboratory.
How should I prepare?
No fasting is needed. Tell your clinician if you use hormonal contraception or have had ovarian surgery.
What can the results mean?
A higher AMH generally suggests more follicles and a stronger response to stimulation; a lower AMH suggests fewer. Very high AMH can be seen with PCOS. Labs use different units and ranges, so results should be interpreted by a clinician.
What are its limitations?
AMH cannot reliably predict egg quality, your chance of natural conception, or exactly when menopause will occur. A low result does not mean you cannot conceive.
Is it routinely recommended?
AMH is a widely used, established test for IVF planning. It is not recommended as a stand-alone 'fertility MOT' for people who are not trying to conceive or planning treatment.
What happens next?
Your result is usually considered alongside an antral follicle count, your age and history to plan any treatment or discuss options such as egg freezing.
Frequently asked questions
Can I raise my AMH?
There is no proven way to meaningfully increase AMH. Lifestyle changes support overall health but do not reliably change ovarian reserve.
Is a home AMH test reliable?
Finger-prick kits can measure AMH, but results are most useful when reviewed by a fertility clinician alongside other information.