AMH Levels by Age: What Is a Normal AMH Level?
Understand AMH levels by age, what your result means, and how to interpret ovarian reserve properly.
Book Your AMH TestAnti-Müllerian hormone, or AMH, is an important fertility marker. It reflects ovarian reserve and changes naturally with age. This means your AMH result should always be interpreted in context.
In general, AMH levels are higher in younger women and lower in older women. That is why the same AMH value may be considered low at one age, but expected at another.
This guide explains AMH levels by age, what the chart means, how median and percentile values work, and what low or high AMH may suggest.
AMH Levels by Age Chart
This chart shows how AMH levels vary across age groups. Values are measured in pmol/L and represent population percentiles.
How to interpret the AMH chart
This chart shows how AMH levels are distributed across different age groups. It helps place your result in context by comparing it with other women of the same age.
Rather than showing one single normal level, the chart uses percentiles. These show how AMH values are spread within each age group.
What does median mean?
The median is the middle value in the group. Half of women in that age range will have AMH levels above the median, and half will have AMH levels below it.
This makes the median a useful guide to what is typical for that age. It is often the best single value to use when looking at the chart for the first time.
What do the percentile values mean?
Percentiles show how your AMH level compares with others of the same age.
- 5th percentile: very low compared with others in that age group
- 10th percentile: below average ovarian reserve for age
- Median: the typical value for that age group
- 90th percentile: above average for age
- 95th percentile: very high compared with others in the same age group
What this means in practice
If your AMH is close to the median, your ovarian reserve is typical for your age.
If your AMH is nearer the lower percentiles, it may suggest reduced ovarian reserve.
If your AMH is nearer the higher percentiles, it may suggest a higher follicle count. This is sometimes seen in women with PCOS.
Percentiles do not define fertility on their own. They simply show how your result compares with other women of the same age. Age, symptoms, cycle history, and overall reproductive health must still be considered.
The most important overall message from the chart is that AMH declines with age. A result that appears low in your twenties may be completely normal in your forties.
AMH of 8 pmol/L may be low at age 25, but may be expected at age 42.
Not sure where your result sits? Get your AMH level tested and reviewed by a doctor .
Normal AMH levels by age
There is no single normal AMH value for everyone. Instead, AMH should be interpreted against age-specific ranges.
Younger women usually have higher AMH levels. Older women naturally tend to have lower levels. This is a normal biological pattern and is one reason why age matters so much in fertility assessment.
What does low AMH mean?
Low AMH suggests reduced ovarian reserve. In simple terms, this means fewer remaining small follicles in the ovaries.
In fertility treatment, lower AMH may suggest that fewer eggs are likely to be collected during IVF stimulation. However, low AMH does not mean infertility and does not rule out natural pregnancy.
AMH reflects egg quantity more than egg quality. That is why the result should always be considered alongside age and the wider clinical picture.
What does high AMH mean?
High AMH may indicate a higher follicle count. It is sometimes seen in women with polycystic ovaries or PCOS.
In IVF, a higher AMH may suggest a stronger response to ovarian stimulation. This can be useful in treatment planning, although it does not guarantee pregnancy.
AMH and fertility treatment
AMH is particularly useful when planning fertility treatment. It helps estimate how the ovaries may respond to stimulation medication.
A lower AMH may suggest a lower response. A higher AMH may suggest a stronger response. However, AMH alone cannot predict whether treatment will be successful.
Frequently asked questions about AMH
What is a good AMH level?
A good AMH level depends on age. There is no single ideal AMH number for everyone.
Is AMH 5 pmol/L low?
AMH of 5 pmol/L may be low in a younger woman, but it may be less concerning after age 40. AMH should always be interpreted alongside age.
Does low AMH mean I cannot get pregnant?
No. Low AMH does not rule out pregnancy. Many women with low AMH still conceive naturally.
Does high AMH mean better fertility?
Not always. High AMH can be seen in PCOS and may reflect a higher number of follicles, rather than better egg quality.
When should I do an AMH test?
An AMH test may be useful if you are planning pregnancy, concerned about fertility, or want to understand your ovarian reserve better.
Check your AMH level today
Book a professional AMH blood test with doctor-reviewed results.
For more detailed clinical guidance, see: NHS AMH Patient Information
