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AMH is a hormone made by the small follicles in your ovaries, and measuring it is the standard blood test for ovarian reserve — your remaining egg supply. At Sonoworld the test costs £97, can be taken on any day of your cycle with no fasting, and your result is emailed to you with a clear explanation. No GP referral is needed.
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Anti-Müllerian hormone (AMH) is produced by the cells surrounding the small developing follicles in your ovaries — each follicle holds an immature egg. The more of these follicles you have, the more AMH circulates in your blood. Because you are born with your full supply of eggs and the pool gradually shrinks over time, AMH levels naturally decline with age. That makes a single blood sample a useful indicator of how much ovarian reserve remains.
Unlike most fertility hormones, AMH stays relatively stable across the menstrual cycle, so the test can be taken on any day — no cycle-day planning and no fasting required.
AMH estimates the quantity of eggs remaining and how your ovaries are likely to respond to fertility medication. It does not measure egg quality, and it does not reliably predict your chance of conceiving naturally — a result should always be interpreted with a clinician alongside your age and, ideally, an antral follicle count scan.
UK laboratories usually report AMH in pmol/L. The reference points come from the NICE fertility guideline (CG156), which uses AMH to predict how the ovaries are likely to respond to stimulation medication in IVF.
| AMH level | NICE interpretation | What this suggests |
|---|---|---|
| 5.4 pmol/L or below | Predicted low response | Reduced ovarian reserve; fertility treatment may need adjusted planning |
| Between 5.4 and 25 pmol/L | Between the NICE thresholds | Neither the low- nor high-response criterion is met; interpreted with age and AFC |
| 25 pmol/L or above | Predicted high response | Plentiful reserve; in IVF this can carry a higher risk of over-response, and raised levels are commonly seen with polycystic ovaries |
Two cautions when reading any AMH result. First, laboratories use different assays and some report in ng/mL rather than pmol/L, so always compare a result against the reporting lab's own reference range. Second, these thresholds describe the likely response to IVF medication — they are not a fertility verdict, and levels vary widely between women of the same age. Your result is emailed with a plain-English explanation, and the report is ready to hand to your GP or fertility specialist.
AMH and the antral follicle count are two views of the same thing — your ovarian reserve — measured two different ways. NICE recognises both, and they are strongest together.
A blood sample measuring the hormone the small follicles produce. Any cycle day, no fasting, result emailed with an explanation. £97.
A transvaginal ultrasound counting the follicles directly, ideally on day 2–5 of your cycle, with instant verbal results and a written report within 24 hours. £235.
Both tests can be done in a single visit to the clinic, and the written report interprets the two results together — a fuller picture of your reserve than either measure alone.
If you are using hormonal contraception, your AMH can read lower than your true reserve, because the hormones suppress follicle activity. The effect reverses after stopping. You do not need to stop contraception to take the test — just tell us, so the result is interpreted correctly.
| Test | Appointment | Price |
|---|---|---|
| AMH blood test | A few minutes | £97 |
| Antral follicle count scan (add in the same visit) | 20 minutes | £235 |
The price is all-inclusive: the blood draw, the laboratory analysis, and your emailed result with a clear explanation. There are no hidden extras. To book online, choose the AFC scan and add the AMH blood test at the options step. Prefer to arrange it by phone? Call 020 3633 4902 and we will book both for you.
No. AMH stays relatively stable across the menstrual cycle, so the blood sample can be taken on any day, and no fasting is required. This makes it one of the most convenient fertility tests to arrange.
No. A low AMH suggests reduced ovarian reserve and a likely lower response to fertility medication, but it does not measure egg quality and does not reliably predict natural conception. Many women with low AMH conceive. Treat the result as a planning tool and discuss it with a fertility specialist alongside your age and an antral follicle count.
A level of 25 pmol/L or above predicts a strong response to IVF medication. Raised AMH is also commonly seen with polycystic ovaries. In IVF planning, a high level matters because it flags a higher risk of over-responding to stimulation, which your fertility clinic will factor into your medication dose.
Hormonal contraception can lower your measured AMH, so the result may underestimate your true reserve. The effect reverses after stopping. You do not need to stop contraception for the test — tell us what you are using so the result is interpreted in context.
Not precisely. AMH declines towards menopause and a very low level in your late reproductive years is consistent with diminishing reserve, but the test cannot give a date. If early menopause is your concern, discuss the result with your GP or a specialist.
There is no fixed schedule for everyone. If you are monitoring your reserve while deciding on egg freezing or family timing, retesting after an interval agreed with your clinician — often around a year — shows the trend, which is more informative than a single reading. Your fertility clinic may ask for a recent result before treatment.
No GP referral needed. Any cycle day, no fasting, and your result emailed with a clear explanation.
Book online — add AMH during booking29 Weymouth Street, London W1G 7DB · 020 3633 4902
This page is for general information and does not replace individual medical advice. Reviewed by our clinical team. Sonoworld is registered with the Care Quality Commission.
