An AMH (anti-Müllerian hormone) level above roughly 7 to 8 pmol/L is generally associated with better chances of pregnancy, but the number that counts as “good” shifts substantially depending on your age, whether you are trying naturally or through IVF, and what the test is actually being used to predict. AMH is a marker of how many eggs remain in your ovaries, not how healthy those eggs are, and that distinction changes nearly everything about how to interpret a result. A 35-year-old with an AMH of 15 pmol/L and a 42-year-old with the same reading face very different prospects despite the identical number on the lab report.
What AMH Actually Tells You
AMH is produced by the small growing follicles in your ovaries, so the amount in your blood roughly tracks how many of those follicles you have left. It rises during childhood, peaks in the early twenties, and then declines steadily until menopause, when it becomes undetectable. The hormone itself does not cause pregnancy or improve egg health. It is a readout of the size of your remaining egg pool, which fertility specialists call “ovarian reserve.”
A critical point that gets lost in online discussions: AMH reflects egg quantity, not egg quality. Whether an egg can be fertilized, develop normally, and result in a live birth depends heavily on chromosomal integrity, and that is overwhelmingly driven by age rather than by the AMH number. Current ovarian reserve tests, including AMH, cannot reliably predict egg quality or the rate of chromosomal abnormalities in embryos.1PubMed Central. Ovarian reserve testing: assessing oocyte quantity and quality This means a young woman with a low AMH still has age-appropriate egg quality, while an older woman with a reassuringly high AMH may still face high rates of chromosomally abnormal eggs.
A Quick Note on Units
AMH results come in two units depending on your lab and country. Most of Europe, Australia, and parts of Asia report in pmol/L, while many North American labs use ng/mL. The conversion factor is 1 ng/mL = 7.18 pmol/L.2PubMed Central. Correlation between three assay systems for anti-Müllerian hormone (AMH) determination If you are reading research from the United States and want to translate: multiply the ng/mL value by 7.18 to get pmol/L. An AMH of 1.0 ng/mL, for example, works out to about 7.2 pmol/L. Throughout this article, the primary unit is pmol/L, with rough ng/mL equivalents where helpful.
Age-Specific AMH Ranges
Because AMH falls with age, a single cutoff for “good” or “bad” does not work well. A level of 14 pmol/L might be perfectly average for someone in her late thirties but on the low side for a 25-year-old. One study of healthy women with regular cycles found these median AMH levels by age group:
- Age 20–25: about 27 pmol/L
- Age 26–30: about 21 pmol/L
- Age 31–35: about 20 pmol/L
- Age 36–40: about 14 pmol/L
- Age 41–45: about 9 pmol/L
- Age 46–50: below 1 pmol/L
The normal range at any given age is wide. For the 36-to-40 age group, for instance, the 2.5th to 97.5th percentile spread was roughly 2 to 49 pmol/L. Two women of the same age can have wildly different AMH levels and both fall within the reference range.3PubMed Central. Reference Ranges of Serum Anti-Müllerian Hormone in Healthy Reproductive-aged Omani Women These numbers also vary somewhat between populations, which we will come back to later.
AMH and Natural Conception
If you are trying to conceive without fertility treatment, a higher AMH is associated with somewhat better odds, but the relationship is messier than many people expect. One study that tracked naturally conceiving women found that pregnancy rates rose with AMH: about 60% in the low-AMH group, 70% in the intermediate group, and 78% in the high group. Among regularly ovulating women with high AMH, the rate reached 84%. Time to pregnancy was also shorter with higher AMH.4PubMed. Investigation of anti-Müllerian hormone concentrations in relation to natural conception rate and time to pregnancy
That said, the same study noted huge variation in how long it took individual women to conceive at any given AMH level, and natural conceptions were observed in women with AMH as low as 1.2 pmol/L. A separate study of naturally conceiving couples found that time to pregnancy was actually unrelated to AMH when treated as a continuous measure, and that natural conception occurred across a wide range of AMH levels, including in women with undetectable AMH.5PubMed. Anti-Müllerian hormone levels and fecundability in women with a natural conception The takeaway: AMH gives a probabilistic nudge, not a verdict. Women with low AMH conceive naturally all the time, and women with high AMH sometimes struggle for other reasons entirely.
AMH and IVF Outcomes
Where AMH proves most useful is in predicting how many eggs your ovaries will produce during IVF stimulation. The correlation between AMH and the number of eggs retrieved is strong. One study reported that it was stronger than the correlation with FSH, the older hormone test. Women were grouped into low, medium, and high AMH categories, and the average egg counts were about 3, 8, and 20, respectively. Clinical pregnancy rates also climbed with higher AMH: roughly 22%, 24%, and 41% across those groups.6PubMed Central. Serum anti-Müllerian hormone levels as a predictor of the ovarian response and IVF outcomes
Other IVF studies have confirmed that women in the high-AMH group retrieve more total oocytes, more mature eggs, and more fertilized eggs.7PubMed Central. Association Between AMH Levels and Fertility/Reproductive Outcomes Among Women Undergoing IVF: A Retrospective Study AMH also correlates with the number of good-quality embryos produced, and it acts as an independent predictor of the number of mature eggs.8PubMed Central. The Association of AMH Level with the Number and Quality of Oocytes in Women Undergoing IVF/ICSI: A Single-Center Study
In IVF, more eggs generally mean more chances to produce a chromosomally normal embryo, which is why AMH matters here more than it does for natural conception. But AMH is still not a pregnancy guarantee. A woman with low AMH who produces fewer eggs can still achieve a live birth if one of those eggs is healthy. In women with diminished ovarian reserve, one study found that an AMH above about 7.5 pmol/L (1.05 ng/mL) was the threshold that best distinguished better from poorer live-birth chances. Live births occurred even when AMH was undetectable.9PubMed. Anti-Müllerian hormone (AMH) defines, independent of age, low versus good live-birth chances in women with severely diminished ovarian reserve
How Clinics Use AMH to Guide Treatment
Fertility clinics increasingly use AMH to tailor the dose of hormones given during IVF stimulation. The idea is straightforward: women with high AMH are at risk of over-responding to standard doses, which can cause ovarian hyperstimulation syndrome (OHSS), a potentially serious complication. Women with low AMH may need more aggressive protocols to coax their ovaries into producing eggs at all.
In practice, dosing algorithms typically group patients into bands. One protocol gave maximal stimulation to women with AMH below 12 pmol/L, a standard dose to those between 12 and 32 pmol/L, and a reduced dose to those above 32 pmol/L.10PubMed. An AMH-based FSH dosing algorithm for OHSS risk reduction in first cycle antagonist protocol for IVF/ICSI A randomized trial used similar cutoffs: women with AMH above 24 pmol/L received a lower stimulation dose, those between 12 and 24 pmol/L got a standard dose, and those below 12 pmol/L got maximal stimulation.11Human Reproduction Open. A randomized controlled trial of AMH-based individualized FSH dosing in a GnRH antagonist protocol for IVF These thresholds are clinic-specific, but the general pattern holds: AMH below about 12 pmol/L signals a likely poor response, 12–30 pmol/L is the middle ground, and above 30–35 pmol/L raises the alert for OHSS.
When AMH Is Very High
An AMH result well above average is not automatically good news. Very high levels are closely linked to polycystic ovary syndrome (PCOS), a condition that can itself cause irregular ovulation and difficulty conceiving. One study found that when AMH exceeded about 79 pmol/L (11 ng/mL), 80% of women had PCOS.12PubMed. Antimüllerian hormone and polycystic ovary syndrome A threshold of roughly 35 pmol/L (5 ng/mL) has been proposed as a diagnostic marker for PCOS and as a warning sign for OHSS risk during IVF stimulation.13PubMed. Relationship between serum anti-Mullerian hormone and intrafollicular AMH levels in PCOS women Women with PCOS often have plenty of eggs but do not ovulate them regularly, so a sky-high AMH can coexist with significant fertility problems. If your AMH is above 35 pmol/L and you are having trouble conceiving, PCOS is worth investigating.
Factors That Can Shift Your AMH Reading
AMH has a reputation for being more stable across the menstrual cycle than other hormones, which is why it can be drawn on any day. That reputation is partly deserved but not perfectly accurate. A systematic review and meta-analysis found statistically significant fluctuations in AMH during the menstrual cycle, and the type of lab kit used to measure it also affected the result.14PubMed Central. Does Anti-Müllerian hormone vary during a menstrual cycle? A systematic review and meta-analysis A single measurement on one day may not reflect your “true” baseline perfectly, and switching labs can sometimes produce a different number even if nothing has changed in your body.
Several lifestyle and reproductive factors are associated with AMH levels. Shorter menstrual cycles, amenorrhea, and a family history of premature menopause have been linked to lower AMH. PCOS is linked to higher levels.15PubMed Central. Effect of Reproductive and Lifestyle Factors on Anti-Mullerian Hormone Levels in Women of Indian Origin Smoking appears to lower AMH modestly. A large population-based study found that current smokers had about 4 percentile points lower age-specific AMH compared to nonsmokers, regardless of how much they smoked. Body weight, alcohol, exercise, and socioeconomic status were not significantly associated with AMH in that study.16The Journal of Clinical Endocrinology & Metabolism. Reproductive and Lifestyle Determinants of Anti-Müllerian Hormone in a Large Population-based Study
AMH and Miscarriage Risk
The question of whether low AMH raises miscarriage risk gets complicated answers depending on how women conceive. In naturally conceived pregnancies, one study found that women with very low AMH (below about 2.9 pmol/L, or 0.4 ng/mL) had roughly 2.2 times the risk of miscarriage compared to those with AMH above 7.2 pmol/L (1 ng/mL).17PubMed Central. Anti-Mϋllerian hormone as a risk factor for miscarriage in naturally conceived pregnancies However, in IVF pregnancies, one study found that low AMH did not increase the risk of early pregnancy loss once a pregnancy was established.18Human Reproduction. Low anti-Müllerian hormone level is not a risk factor for early pregnancy loss in IVF/ICSI treatment
A meta-analysis pooling data from IVF-related studies did find a modestly higher miscarriage rate in women with low AMH compared to those with medium or high AMH, with about a 35% increase in odds.19Human Reproduction Update. Is diminished ovarian reserve a risk factor for miscarriage? Results of a systematic review and meta-analysis The picture is not settled, and the conflicting evidence likely reflects the fact that AMH is primarily about egg quantity, while miscarriage is more often driven by egg quality and chromosomal problems. In older women, low AMH and poor egg quality tend to travel together simply because both worsen with age, making the relationship difficult to untangle.
Ethnic and Racial Differences in AMH
AMH reference ranges are not universal across populations. Research has consistently shown that Black and Hispanic women tend to have lower AMH levels compared to age-matched white women, with differences of roughly 25%.20PubMed Central. Variations in serum müllerian inhibiting substance between white, black, and Hispanic women Chinese women under 25 tend to have higher AMH than white women of the same age.21PubMed Central. Ethnicity/Race and Age-Specific Variations of Serum AMH in Women-A Review The reasons are not fully understood and may involve genetic differences in the starting pool of follicles, differences in follicle recruitment rates, or environmental exposures.
This matters practically because most published AMH reference ranges come from predominantly white European populations. If you are a Black or Hispanic woman, a result that looks “low” against a published reference table may actually be average for your demographic group. Clinics that use population-specific cutoffs could avoid over-diagnosing diminished ovarian reserve in these groups, though most do not yet adjust routinely.
Can You Raise a Low AMH?
This is one of the most-searched questions about AMH, and the honest answer is not especially satisfying. AMH reflects the number of growing follicles you have, and there is no proven way to create new eggs or significantly reverse follicle depletion. The supplement DHEA (dehydroepiandrosterone) has attracted the most attention. Some studies have reported small increases in AMH and improved pregnancy rates in women with diminished ovarian reserve after DHEA supplementation, with a meta-analysis finding a statistically significant but modest increase in AMH following DHEA treatment in these patients.22PubMed Central. The effect of medication on serum anti-müllerian hormone (AMH) levels in women of reproductive age: a meta-analysis But other studies found no change, and the overall evidence base is inconsistent enough that no major fertility guideline currently recommends DHEA as standard practice.23PubMed Central. Is there a role for DHEA supplementation in women with diminished ovarian reserve?
Other supplements marketed as AMH boosters, from CoQ10 to vitamin D to various herbal formulas, have even thinner evidence. The core reality is that a low AMH, once confirmed on repeat testing, mostly reflects where you are on the timeline of natural follicle depletion. The practical response to a low result is not to try to raise the number on paper but to act on the information: if you want to conceive, the best time is now rather than later.
AMH and Predicting Menopause
AMH is the best available biomarker for estimating how far you are from menopause, though “best available” still leaves a lot of uncertainty. One study found that among women aged 35 to 39 with very low AMH (below about 1.4 pmol/L, or 0.20 ng/mL), the median time to menopause was about 10 years. For women in the same age group with AMH above 10.8 pmol/L (1.50 ng/mL), the median time exceeded 13 years.24PubMed Central. Anti-mullerian hormone as a predictor of time to menopause in late reproductive age women
A large systematic review confirmed that lower AMH at any given age is consistently associated with earlier menopause. However, it also concluded that the prediction accuracy for any individual woman remains too imprecise to be clinically useful except at extreme values.25Human Reproduction Update. Anti-Müllerian hormone for the diagnosis and prediction of menopause: a systematic review In other words, a 38-year-old with undetectable AMH can be fairly confident menopause is not decades away, but a 38-year-old with an AMH of 10 pmol/L cannot be told with useful precision whether menopause will arrive at 48 or 55.
The Emotional Weight of the Number
AMH testing has become widely available through direct-to-consumer kits and routine fertility workups, which means many women encounter their result without much clinical context. Research on how women respond to AMH results found that almost half of those tested perceived their result as “low,” and this perception was associated with significantly more emotional distress and greater decisional regret about having had the test done. Women who perceived a low result were more likely to accelerate their conception plans, pursue elective egg freezing, or consider fertility treatment.26Human Reproduction. The psychosocial and behavioural consequences of anti-müllerian hormone (AMH) testing on women
Some of those decisions are entirely reasonable. But the distress often stems from treating AMH as a fertility verdict when it is more like a fuel gauge: it tells you something about how much is left in the tank, not whether the engine works. A young woman with an AMH of 8 pmol/L is being told she may have fewer years of fertility ahead than average, not that she cannot get pregnant now. The number matters most in context. If you have received a result that worries you, a reproductive endocrinologist who can interpret it alongside your age, cycle regularity, and partner factors will give you a far better picture than the number alone.
AMH After Chemotherapy
Cancer treatment adds another layer to AMH interpretation. Many chemotherapy drugs damage ovarian follicles, and AMH typically drops sharply during treatment. Tracking AMH before, during, and after chemotherapy helps oncofertility specialists estimate how much of the follicle pool has been lost. Different drug combinations cause different degrees of damage: some protocols are highly gonadotoxic while others allow substantial ovarian recovery, and the pattern of AMH decline and rebound helps distinguish between the two.27PubMed Central. Serum AMH level as a marker of acute and long-term effects of chemotherapy on the ovarian follicular content: a systematic review If your AMH was measured after cancer treatment and is very low, it reflects follicle damage from the drugs rather than your pre-treatment ovarian reserve. Some women see partial recovery of AMH in the months and years following treatment, particularly after less toxic regimens, though the degree of recovery varies widely.