AMH and Fertility: What Can an Ovarian Reserve Test Really Tell You?

3. 11. 2026 AMH and ovarian reserve assessment

AMH and Fertility: What Can an Ovarian Reserve Test Really Tell You?

What do your AMH levels really say about fertility? Learn what low AMH means, how age affects ovarian reserve and why AMH matters when planning IVF.

What is AMH and what does it tell us about fertility?

Anti-Müllerian hormone (AMH) is produced by cells around small, developing follicles in the ovaries. A blood test can help estimate ovarian reserve, the remaining supply of eggs.

Importantly, AMH does not measure egg quality and cannot, on its own, tell you whether you can become pregnant naturally.

Age, ovulation, overall health and sperm quality all matter. That is why we interpret AMH alongside other findings.

Low AMH: Does it mean I cannot get pregnant?

A low result can be unsettling, especially if you have been trying for a baby for some time.

Low AMH does not automatically mean infertility. It usually suggests a smaller egg reserve, not necessarily poor-quality eggs.

A younger woman with low AMH may still conceive naturally. As age increases, both egg quantity and egg quality decline.

Think of your result as useful information for planning, rather than a verdict on your future.

AMH and age: Why does ovarian reserve decline?

Women are born with a finite supply of eggs, which naturally diminishes over time. AMH usually decreases as well, although the rate differs from person to person.

Age remains one of the most important influences on egg quality and the chances of pregnancy, with fertility declining more noticeably after 35.

AMH can help assess your current ovarian reserve, but it cannot reliably predict how many fertile years you have left.

What is a normal AMH level?

There is no single normal number for everyone. Results must be considered in relation to age and the laboratory's reference ranges.

AMH may be reported in ng/mL or pmol/L, so the numerical result will differ depending on the units used. Always check the units before comparing results.

Low AMH may suggest reduced ovarian reserve.
Higher AMH levels are often associated with a greater ovarian reserve.
Very high AMH levels can occur with polyendocrine metabolic ovarian syndrome (PMOS, formerly PCOS – polycystic ovary syndrome), a condition that can affect ovulation and fertility.

High AMH, however, does not guarantee pregnancy.

AMH and IVF: Why does it matter?

In IVF (in vitro fertilisation), AMH helps your doctor estimate how your ovaries may respond to stimulation and approximately how many eggs might be retrieved.

Low AMH can mean fewer eggs, but it does not rule out successful treatment.

AMH also helps assess the risk of OHSS (ovarian hyperstimulation syndrome), an excessive ovarian response to fertility medication. The risk may be higher when AMH is high.

This information helps us tailor treatment with both effectiveness and safety in mind.

How is AMH tested at ReproGenesis?

AMH is measured with a routine blood sample. The test is quick, straightforward and requires no special preparation.

When can I have the test?

You can usually have the test on any day of your menstrual cycle, as AMH levels remain relatively stable throughout the cycle.

Do I need to fast?

No. Fasting is not required for an AMH-only blood test.

When will I receive my results?

Results are typically available at ReproGenesis within two working days.

When should I consider an AMH test?

Testing may be helpful if pregnancy has not happened despite trying, if you are preparing for IVF or if reduced ovarian reserve is suspected.

It may also be useful for women who have undergone certain ovarian surgeries or who wish to discuss their ovarian reserve with a fertility specialist.

AMH is not, however, a stand-alone test of your future fertility and cannot reliably predict your chances of conceiving naturally.

Have your AMH result but are unsure what it means?

Low, high or borderline AMH results can raise many questions. One number does not define your chances of becoming a parent.

At ReproGenesis, we look at your result together with your age, medical history and other tests. Our specialists will help you understand your ovarian reserve and discuss the most appropriate next steps.

Book a consultation at our clinic in Brno to explore your results and the fertility treatment options available to you.