Ovarian Reserve Testing
Ovarian reserve testing means two things done together. A blood test for anti-Müllerian hormone, always shortened to AMH, which is made by the small follicles sitting in the ovary waiting their turn. And an ultrasound count of those same follicles, the antral follicle count, or AFC. Both are estimates of the same thing from different angles: roughly how many eggs are left in the reserve.
Here is the part the marketing skips. AMH measures quantity, not quality, and it does not tell you whether you can conceive naturally. Two women with the same number can have completely different odds. What drives those odds is age, and age is not what is being measured here.
What the test is genuinely good at is predicting how the ovaries will respond to stimulation drugs. That is a real and useful answer if IVF or egg freezing is on the table. As a verdict on your future it is close to useless. I have sat with too many people who were handed a number by a website, then spent a year frightened by it.
At a glance
- Also known as
- AMH test, anti-Müllerian hormone test, antral follicle count, AFC, egg count test
- Appointment time
- Blood draw a few minutes; scan 10–15 minutes
- Anaesthesia
- None
- Back to normal
- Same day, no time off
- Whole process
- Nothing to recover from
- Typical cost
- $70–$300 (United States, self-pay)
Figures reviewed .
On this page
Who it’s for
Anyone about to start IVF or egg freezing. The result changes the drug protocol, and the realistic expectation of how many eggs a cycle will produce. Anyone whose history suggests the reserve may be running down early. Chemotherapy or pelvic radiotherapy, ovarian surgery, a family pattern of early menopause. Periods that have become short and then irregular in the thirties count too.
It is also reasonable if you are weighing up timing and want one more input. Understand what it cannot say. It cannot say whether to have a baby now.
Two groups should be careful. Combined hormonal contraception pushes the result below your true level. Either come off it for a couple of months first, or read the number knowing it is depressed. And if you would not act differently whatever the answer, the test is information without a use. In this field that usually means anxiety without a use.
Before you book the test
Decide in advance what you would do with a low result and what you would do with a high one. If both answers are the same, you have learned something already. Spend the money on the tests that would change your plan instead.
How it’s done
The blood test is a single draw and can be done on any day of the cycle, because AMH barely moves across it. That convenience is one reason it took over from the old day-three hormone tests. The sample goes to a lab and results usually come back within a week or two.
The antral follicle count is a transvaginal ultrasound, done with an empty bladder. The slim probe gives a much clearer view of the ovaries than a scan through the abdomen. The sonographer counts the small fluid-filled follicles, the ones between about two and ten millimetres, in each ovary and adds them together. It takes ten to fifteen minutes and is uncomfortable rather than painful for most people.
The count is done early in the cycle, usually in the first few days after a period starts. At that point the follicles are still small and evenly sized, and nothing has begun to dominate. That timing is the one piece of scheduling this test needs.
When you book the scan
Say which day of your cycle you expect to be on, and ask the clinic to confirm that works for a follicle count. A scan booked at the wrong point in the cycle gives a number nobody can compare with anything, and you pay for it twice.
After ovarian reserve testing
There is nothing to recover from. You walk out of both, and the only aftermath anyone reports from the scan is mild discomfort or a little spotting for a few hours.
The waiting is the harder part. Results come back over the following week or two. Read alone they are close to meaningless, which is why the appointment that interprets them matters more than the test. Ask for the number and the unit, not the verdict, and keep it. When it gets repeated a year or two later, the comparison is the useful bit.
| Booking | Blood on any day. Scan booked for the first few days of a cycle, so the follicles are still small and even. |
|---|---|
| Test day | One blood draw and a 10–15 minute transvaginal scan. Straight back to normal afterwards. |
| Days 3–14 | AMH result back from the lab. The follicle count is usually known on the day. |
| The follow-up | The two read together, against your age. This is the appointment that gives the number meaning. |
| Before treatment | Result used to set the stimulation protocol and the realistic egg expectation for a cycle. |
| 12 months on | Most clinics repeat it if the old result is more than a year old, or sooner if a plan has changed. |
When you get the result
Write the number, the unit and the date at the top of the page before you read anything else into it. Units differ between countries and labs change assays, and that single line is what makes the next result comparable.
Risks and complications
Physically there is almost nothing: a bruise from the blood draw, brief discomfort from the scan. The real risks here are what the result does to the decisions around it, and they run in both directions.
A low number frightens people into treatment they might not have needed, or out of trying at all. It predicts a poorer response to stimulation drugs, which is a statement about IVF, not a statement about this month. Plenty of women with low AMH conceive without help.
A normal or high number does the opposite damage. It reads as a clean bill of health. Egg quality and age are doing most of the work, and neither appears anywhere in the result. High readings also turn up in PCOS, where the issue is ovulation rather than reserve. A reassuring number can sit on top of the actual problem.
Ovarian reserve testing results
AMH is reported in ng/mL in the US and in pmol/L across much of Europe and Australia. The two look wildly different for the same sample, because one is roughly seven times the other. Many labs treat somewhere around 1.0 to 4.0 ng/mL as unremarkable for a woman in her early thirties, with lower readings suggesting a smaller reserve. Cut-offs are set locally, though, and every lab publishes its own.
An antral count in the mid teens across both ovaries is usually called good. Under about five to seven is low. A very high count alongside irregular cycles points towards PCOS.
Treat any comparison between labs with suspicion. Assays have been recalibrated more than once, and a result from a different lab or a different year is not a like-for-like measurement. If a number is going to change your plan, it is worth repeating in the lab your clinic actually uses.
What a good result looks like is honest context: your number, your age, your cycle history and your partner's semen analysis in the same conversation. A figure handed over without that is not a result. It is a data point being sold as one.
Alternatives to ovarian reserve testing
Before AMH, reserve was judged on day-three FSH and oestradiol. Both have to be drawn in the first few days of a cycle, and both swing from month to month. They still appear on panels, and they are still useful when something does not add up. As a stand-alone measure of reserve they have been largely replaced.
The real alternative is not another test. It is accepting that age tells you most of what ovarian reserve testing is being asked to tell you. Then spending the money on the tests that find fixable problems: whether the tubes are open, whether ovulation is happening, and what the semen analysis says.
Ovarian reserve testing cost
The blood test is cheap. What varies is everything wrapped around it, and clinics price the package rather than the marker. A direct-to-consumer kit is the cheapest route and the worst value. What you are paying for is interpretation, and that is precisely what the kit leaves out.
Ask what the quoted price includes: the blood, the scan, and the consultation that reads them together. A test with no clinician attached to the result costs less and is worth less. If the result will feed into treatment, check whether the clinic will accept an outside lab's number or repeat it in their own. A repeat you did not budget for is the common surprise here.
| Country | Self-pay | Public / insurance |
|---|---|---|
| United States AMH alone at the low end; bundled with a scan and a consultation, roughly $250–$600 | $70–$300 | Diagnostic testing covered by many plans even where treatment is not; check before paying out of pocket |
| United Kingdom A private fertility check bundling AMH, scan and consultation is usually £250–£500 | £60–£150 | Available on the NHS as part of a fertility work-up once referral criteria are met |
| Australia Expect the scan and the consultation to cost more than the blood test | A$80–$150 | AMH is generally not rebated; the pelvic ultrasound attracts a Medicare rebate with a referral |
Choosing a clinic for ovarian reserve testing
You are choosing a lab and a clinic here, not a surgeon. Start with accreditation, because that is the part that governs how the blood is handled and how the result is reported. Ask which assay the lab runs and which edition of it, and whether they have changed it recently. A clinic that cannot answer is not in a position to compare your result with anyone else's, including your own from two years ago.
The second question is who reads the number. Some services email a figure and a colour-coded band and call that a result. What you want is a clinician who puts the number next to your age, your cycle history and your partner's semen analysis, in a conversation you can ask questions in. I would pay more for that and less for the blood.
For the scan, ask how often whoever holds the probe does antral counts. Counting small follicles reliably is a practised skill rather than a difficult one, and the number drifts when it is done occasionally. If the clinic will be using the count to set a stimulation protocol later, it is worth having it done by the people who will be doing the monitoring scans anyway.
At the consultation
Ask who will phone you with the result and how long they will spend on it. The answer tells you whether you are buying a test or buying an interpretation, and it is the difference between a number that helps and a number that frightens you for a fortnight.
Frequently asked questions
Does a low AMH mean I cannot get pregnant?
No. It predicts a poorer response to IVF drugs, not a failure to conceive naturally. Many women with low readings conceive without help. See risks.
Does a normal AMH mean I am fertile?
No. It says nothing about egg quality, the tubes, the uterus or sperm, and age matters more than the number does. See ovarian reserve testing results.
Does the pill affect my AMH?
Yes, it tends to read lower on combined hormonal contraception. Come off it for a couple of months first, or read the result knowing it is depressed.
Are the egg count tests sold online worth it?
They deliver the cheap part and leave out the expensive part, which is someone reading the number against your age and history. See ovarian reserve testing cost.
How often should it be repeated?
Only when it would change a decision. Clinics generally want a result less than a year old before starting treatment.