AMH Testing Explained: What Your Ovarian Reserve Blood Test Really Tells You

What is AMH, and why does it matter for fertility?

Anti-Müllerian hormone (AMH) is produced by the small follicles in your ovaries, and the amount in your blood gives an indication of your ovarian reserve, broadly, how many eggs you have remaining. It's one of the most commonly requested tests for anyone thinking seriously about their fertility timeline, whether that's planning a pregnancy, considering egg freezing, preparing for IVF, or investigating symptoms of a hormonal condition like PCOS. You can book an AMH blood test privately, without a GP referral.

Unlike some fertility hormones, AMH doesn't rise and fall much across your menstrual cycle, so it can be tested on any day. There's no need to time it around a specific cycle day the way you would with LH or day-3 FSH.

For LH, progesterone and hCG, the hormones more commonly tested during active IVF monitoring, see our separate guide: Fertility Hormone Testing: Progesterone, LH & hCG Explained.

What does an AMH test actually measure?

AMH reflects the size of your remaining pool of ovarian follicles, sometimes described as an estimate of "egg count" rather than egg quality. It's a useful planning tool, but it's worth being clear about what it can and can't tell you:

• It can give a general sense of ovarian reserve and help a fertility specialist estimate how you might respond to ovarian stimulation during IVF.
• It can't predict whether or when you'll conceive naturally, measure egg quality, or diagnose infertility on its own.

AMH results are always best interpreted alongside your age, medical history and, where relevant, other fertility markers. This is why we recommend discussing your result with a GP or fertility specialist rather than reading it in isolation.

Who should consider AMH testing?

An AMH test is commonly requested by people who are:

• Planning a pregnancy and want a general sense of their fertility timeline
• Considering egg freezing and want information to help with that decision
• Preparing for IVF, where AMH helps guide medication dosing and expectations
• Investigating symptoms that could suggest PCOS or other hormonal imbalances, since AMH is often elevated in PCOS
• Approaching your late 30s or 40s and want a clearer picture before trying to conceive

What to expect from the test

• No fasting required: you can eat and drink as normal beforehand
• No specific cycle day needed: AMH stays relatively stable throughout your cycle, so it can be booked flexibly
• A simple blood draw: the sample is taken from a vein in your arm, in the same way as any standard blood test
• No GP referral required: you can book directly with us

If you're currently using hormonal contraception or have recently been pregnant, it's worth mentioning this when you book, as it can affect how your result should be interpreted.

Getting your AMH test done privately

You can book an AMH blood test directly with us. No GP referral needed, and appointments are available at our Slough, Neasden and Victoria clinics. Find your nearest clinic and book →

Results are processed through our UKAS-accredited laboratory. If you'd like help understanding what your result means for you personally, you can add a private GP consultation with one of our GMC-registered doctors at the same time.

This article is for general information only and does not constitute medical advice. AMH results should be interpreted by a qualified healthcare professional in the context of your age, medical history and fertility goals. VitaLync Diagnosis works with GMC-registered doctors, is CQC-registered, and processes samples through a UKAS-accredited laboratory.