Fertility & hormones
AMH blood test
An AMH (anti-Müllerian hormone) blood test gives an indication of your ovarian reserve, roughly how many eggs you have remaining. It's widely used when thinking about fertility or planning treatment such as IVF, but it reflects egg quantity rather than quality, so it's one part of a fuller picture rather than a yes-or-no fertility test.
- What it measures
- Anti-Müllerian hormone, a marker of ovarian reserve (egg supply)
- Sample
- Venous blood sample
- Fasting
- Not required (can be taken on any day of your cycle)
- Also known as
- anti-Müllerian hormone, ovarian reserve
- Included in 57 Health tests
- 1 panel, from £110
What does a high AMH level mean?
A high AMH suggests a larger ovarian reserve (a higher egg count for your age). It is commonly seen in polycystic ovary syndrome (PCOS), often together with irregular cycles and other features.
AMH alone does not diagnose PCOS. It's considered alongside your cycle history, symptoms and other hormone results.
What does a low AMH level mean?
A low AMH suggests a lower ovarian reserve (fewer eggs remaining), which is a normal part of getting older and varies a lot between individuals.
Importantly, AMH reflects egg quantity, not quality, and a low AMH does not mean you can't conceive naturally. It's most useful for planning (for example, informing IVF expectations) and is interpreted alongside age, FSH and an ultrasound where relevant.
When to consider an AMH test
- Thinking about fertility, now or in the future
- Planning fertility treatment such as IVF
- Irregular or absent periods
- Suspected PCOS (alongside other tests)
- A family history of early menopause
Frequently asked questions
This page is general information about a blood marker and is not medical advice or a diagnosis. An AMH test screens and gives context; results are interpreted by a clinician alongside your symptoms, history and other markers. Always follow the guidance on your own report.