Anti-Müllerian Hormone (AMH) is one of the most commonly discussed fertility hormones today. If you have recently had an AMH test, you may be wondering whether your result is normal for your age, what it says about your ovarian reserve, and whether a low AMH level means you may have difficulty getting pregnant.
The good news is that a low AMH level does not automatically mean you cannot become pregnant. AMH is primarily a marker of ovarian reserve, meaning the estimated quantity of follicles remaining in the ovaries. It does not directly measure egg quality and should not be used on its own to predict whether or when a woman will conceive.
What Is AMH?
Anti-Müllerian Hormone, commonly called AMH, is produced by granulosa cells in small ovarian follicles. Because the number of these follicles generally decreases as women get older, AMH levels also tend to decline with age.
AMH is therefore used as an indicator of ovarian reserve, or the remaining quantity of eggs and follicles in the ovaries. It is particularly useful when doctors are assessing how the ovaries may respond to fertility treatments such as ovarian stimulation and IVF.
However, ovarian reserve and fertility are not exactly the same thing.
The American Society for Reproductive Medicine (ASRM) notes that ovarian reserve tests can help predict the number of eggs that may be obtained during ovarian stimulation, but they are relatively poor independent predictors of reproductive potential. Age remains a much stronger predictor of fertility.
What Is a Normal AMH Level?
One of the most important things to understand is that there is no universal “normal AMH level” that applies to every woman.
AMH varies considerably between individuals of the same age. Results can also vary depending on the laboratory, testing method and assay used. Therefore, an AMH result should always be interpreted using the reference range provided by the laboratory and in the context of the woman’s age and medical history.
Research consistently shows that AMH generally decreases with advancing age. For example, a large population-based study found that AMH remained relatively stable in younger women and then showed a steady decline after approximately age 25.
Approximate AMH Levels by Age
The following figures are provided only as an educational guide, not as a diagnostic reference range. Different populations and laboratory assays can produce substantially different results.
| Age | General trend in AMH |
| 20–24 years | Usually higher ovarian reserve |
| 25–29 years | Generally high, with gradual variation |
| 30–34 years | Gradual decline becomes more noticeable |
| 35–39 years | AMH commonly declines further |
| 40–44 years | Lower AMH levels become increasingly common |
| 45+ years | AMH is generally much lower as ovarian reserve declines |
For example, one population-based study reported median AMH values of approximately 2.25 ng/mL at age 30, 1.71 ng/mL at age 35 and 1.08 ng/mL at age 40, although the range between individuals was very wide.
Another large study of Chinese women reported median AMH values of approximately 4.83 ng/mL at age 21, 4.47 ng/mL at age 25, 3.67 ng/mL at age 30, 2.59 ng/mL at age 35 and 1.35 ng/mL at age 40. These differences demonstrate why a single AMH number should not be labelled “normal” without considering the testing method and population.
What Does Low AMH Mean?
A low AMH level may indicate that the number of remaining ovarian follicles is lower than expected for your age. Doctors may describe this as diminished ovarian reserve (DOR).
Low AMH can be associated with:
- A lower number of eggs remaining in the ovaries
- A potentially lower response to ovarian stimulation during IVF
- Fewer eggs retrieved during an IVF cycle
- Earlier decline in ovarian reserve
- Previous ovarian surgery or certain medical treatments
- Some conditions that can affect ovarian function
However, low AMH does not automatically mean infertility.
This distinction is extremely important.
ASRM states that diminished ovarian reserve does not necessarily mean a woman is unable to conceive. Ovarian reserve testing should be interpreted alongside age, reproductive history and other clinical factors.
Can You Get Pregnant With Low AMH?
Yes, pregnancy is possible with low AMH.
AMH primarily provides information about the quantity of ovarian follicles. It does not directly tell us whether a woman will conceive naturally in a particular month.
In studies reviewed by ASRM, women with low AMH did not necessarily have lower cumulative pregnancy rates compared with women with higher AMH levels. For example, one prospective study found similar cumulative pregnancy rates among women with AMH below 0.7 ng/mL and those with higher AMH levels.
This is why a low AMH result should not be interpreted as:
“I cannot get pregnant.”
Instead, it may mean:
“My ovarian reserve may be lower, so I should understand my fertility situation and reproductive options carefully.”
Does Low AMH Affect Egg Quality?
AMH does not directly measure egg quality.
Egg quantity and egg quality are different aspects of reproductive health.
A woman may have a relatively low AMH but still produce an egg capable of fertilisation and a healthy pregnancy. Conversely, a higher AMH does not guarantee good egg quality.
Age is particularly important because egg quality generally declines with increasing maternal age. ASRM identifies female age as the single most important predictor of fecundity, while ovarian reserve tests provide additional information rather than replacing age-based assessment.
What Does AMH Tell You During IVF?
AMH can be particularly useful when planning fertility treatment.
During IVF, medications are used to stimulate the ovaries so that multiple follicles can develop. AMH can help doctors estimate how the ovaries may respond to stimulation.
Low AMH
A low AMH may suggest:
- Fewer follicles available for stimulation
- A potentially lower number of eggs retrieved
- A need for an individualized stimulation strategy
Higher AMH
A higher AMH may indicate a larger follicle pool and can be associated with a stronger response to stimulation.
However, very high AMH levels can also occur in women with polycystic ovary syndrome (PCOS) and may be associated with an increased risk of excessive ovarian response during stimulation.
AMH is therefore useful for planning treatment, but it is not a guarantee of IVF success. ASRM notes that AMH and antral follicle count are useful predictors of egg yield, while their ability to independently predict pregnancy and live birth is much weaker.
When Should You Consider an AMH Test?
An AMH test may be considered as part of a fertility evaluation, particularly when a doctor wants to assess ovarian reserve.
It may be useful for women who:
- Are undergoing an infertility evaluation
- Are considering IVF or other assisted reproductive treatments
- Have a history that may affect ovarian reserve
- Have undergone certain ovarian procedures or treatments
- Need individualized fertility treatment planning
- Have concerns about reproductive planning and want professional counselling
AMH can generally be measured at any point during the menstrual cycle, although the interpretation may depend on the clinical situation and other medications or treatments. ASRM notes that AMH is relatively cycle-independent compared with some other ovarian reserve tests.
What Other Tests Are Used With AMH?
AMH should rarely be interpreted in isolation.
A fertility specialist may combine AMH with:
1. Antral Follicle Count (AFC)
Antral follicle count is measured using a transvaginal ultrasound. It estimates the number of small follicles visible in the ovaries.
AMH and AFC are considered among the most sensitive markers of ovarian reserve.
2. Follicle-Stimulating Hormone (FSH)
FSH may provide additional information about ovarian function, particularly in certain women with very low AMH.
3. Estradiol
Estradiol may be evaluated alongside FSH during the early follicular phase.
4. Medical and Reproductive History
Your age, menstrual cycle, previous pregnancies, surgeries, medications and reproductive goals are all important when interpreting ovarian reserve.
5. Semen Analysis
If pregnancy has not occurred, the male partner’s fertility should also be evaluated. Fertility is a couple’s health issue, and ovarian reserve testing alone cannot provide a complete explanation for infertility.
Can AMH Levels Be Increased Naturally?
There is currently no proven treatment that can reliably restore a depleted ovarian reserve or substantially increase the number of eggs remaining in the ovaries.
A healthy lifestyle can support overall reproductive and general health, but supplements or specific foods should not be promoted as a way to “increase AMH” or reverse ovarian ageing.
If your AMH is low, the more important question is usually not “How can I increase my AMH?”, but rather:
“What does this result mean for my reproductive plans, and what should I do next?”
A fertility specialist can help answer that question based on your age, ovarian reserve, reproductive history and pregnancy goals.
Low AMH and Pregnancy: What Should You Do?
If you have received a low AMH result, try not to panic.
The next step should be a proper fertility assessment rather than interpreting the number alone.
Your doctor may consider:
- Your age
- AMH level and laboratory reference range
- Antral follicle count
- Menstrual and ovulation history
- Previous pregnancies and fertility treatments
- Relevant medical or surgical history
- Partner’s semen analysis when appropriate
- How long you have been trying to conceive
These factors provide a much more complete picture than AMH alone.
When Should You See a Fertility Specialist?
You should consider professional fertility evaluation if you have been trying to conceive without success or if you have specific risk factors for reduced fertility.
ASRM recommends evaluation after 12 months of trying for women younger than 35, and after 6 months for women aged 35 or older. Earlier evaluation may be appropriate when there are known risk factors or concerns about fertility.
Women over 40 may benefit from more immediate fertility assessment because fertility declines more rapidly with age.
The Bottom Line
AMH is an important marker of ovarian reserve, but it is not a crystal ball for pregnancy.
AMH generally declines with age, and women of the same age can have very different AMH levels. A low result may indicate diminished ovarian reserve and may help doctors predict ovarian response during fertility treatment, but it does not automatically mean that natural pregnancy is impossible.
The most meaningful fertility assessment considers AMH together with age, antral follicle count, ovulation, reproductive history, partner fertility and other clinical factors.
If you have concerns about your AMH level, fertility or chances of pregnancy, consulting a qualified fertility specialist can help you understand your individual situation and choose the appropriate next steps.
