What Is AMH and What Does My Level Say About My Fertility?
What anti-müllerian hormone measures, how to read your results, and what they mean for egg freezing, IVF, and family planning.
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Medically reviewed by Dr. Carolyn Alexander
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6 min read
THE SHORT ANSWER
AMH, or anti-Müllerian hormone, is a blood marker of ovarian reserve. It gives a general sense of how many eggs you have remaining, not how fertile you are. A low AMH does not mean you cannot get pregnant, and a normal AMH does not guarantee pregnancy. AMH is most useful for planning, such as deciding when to freeze eggs or predicting how the ovaries may respond to IVF medication.
AMH has become one of the most talked-about fertility tests, in part because it is a simple blood draw and in part because the results can feel alarming without context. A single number is easy to misread, and many patients leave a test believing their fertility is either secure or running out.
The reality sits in between. AMH answers one specific question well and several others poorly. Below, we explain what AMH measures, how to interpret your level, what it cannot tell you, and how the results connect to options like egg freezing and IVF.
UNDERSTANDING AMH
What is AMH?
AMH is a hormone produced by granulosa cells, the cells that surround small, developing follicles in the ovaries. Each follicle holds an immature egg. Because these small follicles release AMH into the bloodstream, the amount of AMH in a blood sample reflects roughly how many are present at a given time.
That count is what physicians call ovarian reserve, meaning the supply of eggs remaining in the ovaries. Everyone is born with all the eggs they will ever have, and that number declines naturally over time. AMH offers a way to estimate where someone is along that curve.
AMH is measured in nanograms per milliliter (ng/mL) in the United States. Some labs report picomoles per liter (pmol/L). One ng/mL equals about 7.14 pmol/L, so it helps to check which unit your report uses before comparing numbers.
READING YOUR RESULTS
What Does My AMH Level Mean?
There is no single universal cutoff for AMH. Reference ranges differ between labs and testing methods, and what counts as typical changes with age. The ranges below reflect how many fertility clinics generally interpret results for adults. Your physician will read your number alongside your age, ultrasound findings, and health history.
| AMH (ng/mL) | Approx. pmol/L | General interpretation | What it may suggest |
|---|---|---|---|
| Above 3.0 | Above 21 | High | A large number of follicles, which can be associated with PCOS |
| 1.0 to 3.0 | 7 to 21 | Within the typical range | Ovarian reserve consistent with many patients in their reproductive years |
| 0.7 to 0.9 | 5 to 6.4 | Low end of typical | Worth discussing timing if you are planning pregnancy or egg freezing |
| 0.3 to 0.6 | 2 to 4.3 | Low | Reduced ovarian reserve; the ovaries may produce fewer eggs during IVF |
| Below 0.3 | Below 2 | Very low | Significantly reduced reserve; a consultation can clarify options |
COMMON MISCONCEPTIONS
What AMH Can Tell You
- A general estimate of how many eggs remain in the ovaries.
- How the ovaries are likely to respond to stimulation medication during IVF or egg freezing.
- A rough sense of how many eggs may be retrieved in a single cycle.
- Whether reserve is lower than expected for your age, which may affect planning.
- A possible sign of PCOS when levels are high, along with other findings.
What AMH Cannot Tell You
- The quality of your eggs, which is tied mainly to age.
- Your chance of conceiving naturally in the next few months.
- Exactly when menopause will begin.
- Whether your fallopian tubes, uterus, or a partner’s sperm are affecting fertility.
- Your overall fertility on its own.
This distinction matters. Research generally suggests that among women trying to conceive without treatment, a low AMH is not strongly linked to a lower chance of pregnancy in the near term. Someone with low AMH who ovulates regularly releases one egg per cycle, just as someone with a higher level does. Where AMH carries more weight is in treatment, where the number of eggs available at once affects planning.
AGE AND OVARIAN RESERVE
How AMH Changes With Age
AMH typically rises through adolescence, levels off in the early to mid twenties, and then declines gradually. The decline tends to become steeper in the mid to late thirties and continues until levels become very low approaching menopause.
Age and AMH work together but measure different things. AMH reflects how many eggs remain, while age is the main factor in how many of those eggs are chromosomally normal. A 32-year-old with low AMH and a 42-year-old with the same number are in very different positions, because egg quality differs substantially between those ages.
Levels can also vary between people of the same age. Genetics, ovarian surgery, endometriosis, chemotherapy, and smoking can all lower AMH. Hormonal birth control may temporarily lower measured levels as well, which is worth mentioning to your physician when you test.
TESTING
How AMH Is Tested and When to Consider It
AMH is measured with a standard blood draw. Unlike some fertility hormones, AMH stays relatively stable throughout the menstrual cycle, so it can usually be tested on any day. Physicians often pair it with an antral follicle count (AFC), a transvaginal ultrasound early in the cycle that counts the small follicles visible in each ovary. Together, the two give a fuller picture than either alone.
Testing may be worth considering in several situations.
1
You are thinking about egg freezing
AMH helps estimate how many eggs a cycle may produce and whether more than one cycle may be needed to reach a target number.
2
You plan to delay pregnancy
Knowing your reserve earlier can inform decisions about timing, even if you are not ready to pursue treatment.
3
You have been trying to conceive
If you are under 35 and have been trying for a year, or 35 or older and trying for six months, AMH is often part of a full fertility evaluation.
4
You have a history that can affect the ovaries
Prior ovarian surgery, endometriosis, cancer treatment, or a family history of early menopause are reasons to check reserve sooner.
5
You have irregular cycles
A high AMH alongside irregular periods can be one clue pointing toward PCOS, which your physician can evaluate further.
YOUR OPTIONS
What Your AMH Results Mean for Your Fertility Options
If your AMH is within the typical range, the result is reassuring about your egg supply, though it says nothing about other factors. If you are planning to delay pregnancy, it can still be worth discussing egg freezing, since age will continue to affect egg quality regardless of reserve.
If your AMH is low, it does not rule out pregnancy. It does suggest the ovaries may produce fewer eggs during IVF or egg freezing, which can mean planning for more than one retrieval cycle or acting sooner rather than later. Your physician may adjust medication protocols to match how your ovaries are likely to respond. For some patients with very low reserve, donor eggs become part of the conversation.
If your AMH is high, your ovaries may respond strongly to stimulation medication. That can mean more eggs retrieved, but it also raises the risk of ovarian hyperstimulation syndrome (OHSS), so protocols are adjusted to keep treatment safe. A high level can also prompt an evaluation for PCOS.
In every case, AMH is one data point. A single healthy embryo is what leads to a pregnancy, and your chance of producing one depends on age, egg quality, and the full clinical picture, not AMH alone.
QUESTIONS TO ASK ABOUT YOUR AMH RESULTS
- How does my AMH compare with what is typical for my age?
- Should we pair this result with an antral follicle count?
- Could birth control or another factor be affecting my number?
- How many eggs might I expect from an egg freezing or IVF cycle?
- Does my result change how soon I should consider treatment?
- What other tests would give a complete view of my fertility?
COMMON QUESTIONS
Frequently Asked Questions
Yes. Low AMH means fewer eggs remain, but if you ovulate regularly, you still release an egg each cycle. Research generally suggests low AMH is not a strong predictor of natural conception in the near term. It matters more for IVF and egg freezing, where it affects how many eggs are retrieved.
Not exactly. AMH estimates ovarian reserve by measuring a hormone released by small follicles, so it tracks egg supply without counting eggs directly. An antral follicle count on ultrasound is often used alongside AMH to give a more complete estimate.
AMH helps predict how many eggs a single egg freezing cycle may produce. A lower level can mean fewer eggs per cycle and possibly more cycles to reach a goal. The quality of frozen eggs, and their chance of later leading to a pregnancy, depends mainly on age at the time of freezing.
Cost depends on the lab, your insurance, and whether the test is ordered as part of a fertility evaluation. Some plans cover it when there is a diagnostic reason. Our team can help you understand pricing and coverage before testing.
AMH can usually be tested on any day of your cycle. Consider testing if you are thinking about egg freezing, planning to delay pregnancy, have been trying to conceive without success, or have a history such as ovarian surgery or endometriosis that can affect reserve.
Hormonal birth control may lower measured AMH temporarily, which can make reserve look lower than it is. Let your physician know if you are using hormonal contraception so your result can be interpreted with that in mind, or retested later if needed.
WHY PATIENTS CHOOSE SCRC FOR OVARIAN RESERVE TESTING
- Board-certified reproductive endocrinologists who interpret AMH in the context of your full history.
- Ovarian reserve evaluations that pair AMH with ultrasound.
- Egg freezing and IVF performed in our Beverly Hills ART laboratory.
- SART member clinic.
- Locations across Southern California.
