AMH (Anti-Müllerian Hormone) is a blood test that measures the level of a hormone produced by small follicles called granulosa cells in the ovaries. A higher level of AMH reflects a large pool of early-stage follicles. It gives an approximation of the ovarian reserve.
AFC(antral follicle count) is an ultrasound count. It is a transvaginal scan done between day 2 and day 5 of the menstrual cycle and determines the resting follicles in both ovaries at the moment. It helps to give a direct visual count.
One is structural, and one is hormonal, but together AMH AFC tests look at the same biology from different angles. For the complete breakdown, read the complete AMH AFC fertility test guide and get to know what these tests tell, what other tests don't, and decide which to start first.
What AMH Tells You?
- Time Flexibility
AMH can be conducted on any cycle day. There is no requirement to wait for day 2 and to be menstruating. This makes it easier to repeat and organise.
- Reserve At Cellular Level
AMH reflects follicles at the initial phase of development before they appear larger on ultrasound. These are small transition follicles. AFC captures the follicles that are already grown to be visible slightly earlier with the broader picture.
- Repeatable Marker
This test is a blood draw without cycle-day restriction. So this can be repeated at intervals to track whether the reserve is holding steady, declining or responding to treatment.
What Does AFC Tell
Follicles Visible Today
AFC is not a hormone level; it is a direct count. You are not concluding the number of follicles from the blood test. You are diagnosing them on the screen. When both tests agree, the count on the screen validates what is suggested by the blood test.
- PCOS Morphology
If one or both ovaries show more than 12 follicles that are peripherally arranged, or the follicle count in a single ovary is more than 20, that pattern is part of the PCOS diagnosis. Morphology is not confirmed by AMH; it's confirmed by AFC. For women with irregular cycles, only the AFC can give the complete picture.
- Uterus And Endometrium In The Same Scan
A fertility scan is done to count follicles; at the same time, it gives you endometrial thickness, uterine size on day 2 to day 3 and an assessment for fibrosis, adenomyosis and polyps. You get the two layers of information from the single appointment.
- Less Affected By Variability Of Lab
The results of AMH can vary between labs, but not the results of AFC because it is a physical count, so you don't have any problem with assay variations.
Start With Which Test
For most women who want to improve fertility, AMH is a better practical solution to start with. There is no requirement to wait for your period. This can be done at any diagnostic centre along with a blood test. The results can be available in 24 hours. It gives the basic idea that remains relevant across multiple cycles.
From there, once you know where AMH sits, then between day 2 and day 5, ultrasound is recommended, and AFC is naturally the next step.
But there are some situations in which AFC takes priority:
- If You Have Irregular Cycles
For women with irregular periods or PCOS, confirming ovarian morphology is a vital part of the diagnosis. AFC scan helps to assess the antral follicles when the cycles are irregular.
- If Planning IVF Soon
For IVF, both AMH and AFC tests are required before the first consultation regarding IVF treatment. AFC tells what an ovary looks like, and AMH gives hormonal context. Running them together gives an accurate baseline for the IVF treatment.
- If Your AMH is Low
A low AMH from diagnostic lab results can vary. A day 2 to day 5 scan at a specialty fertility centre can confirm whether AFC matches what AMH suggests, or the readings of AMH can vary.
Why Want Both
AFC and AMH can agree most of the time. Both tests can be considered when you have a consistent picture of ovarian reserve from two different methods.
The Biggest Picture
AMH and AFC together both give a clear picture of fertility and ovarian reserve. But reserve is not the only part of the picture. Egg count can not be affected by age, but the quality can. The number of available eggs says something about the chromosomal integrity of those eggs.
Tubal patency, ovulation and partner semen quality each carry weight greater than or equal to reserve in determining natural conception probability. A woman with normal partner semen analysis and confirmed ovulation is in a different situation from one with an 0.9 AMH level and anovulation.
For better diagnosis and confirmed results of the AMH AFC test in Visakhapatnam to start the IVF treatment, you can engage with the experts at Clinic By Choice, Anuj Gupta, who connects you with the healthcare specialist providing appropriate guidance, treatment and clears the doubts about AMH AFC fertility test questions that are on your mind.
FAQ's
What is measured by AMH and AFC?
Egg quantity is measured by AMH and AFC because egg quality declines with age.
When can these tests be done?
AMH can be done on any day of the cycle, but AFC can be done in between cycle days 2 and 5.
What are the normal ranges for both these tests?
The normal range for AMH is between 1.0 and 4.0 ng/mL, and for AFC, 10 to 20 visible follicles. But the range can vary on the basis of age.
Can low results of these tests mean infertility?
They don't predict the chances of natural pregnancy;\ they only show how ovaries respond to IVF medicines.
What causes high levels of AMH and AFC?
High counts mean you have PCOS, which means small follicles are present in the ovaries
