Antral follicle count (AFC)
AFC is an ultrasound count of the small resting follicles in your ovaries near the start of a cycle. With AMH, it helps estimate your ovarian reserve and how you might respond to IVF.
Antral follicle count (AFC) is the number of small, resting follicles a doctor can see on an ultrasound near the start of your cycle.
Why it matters
Together with AMH, AFC helps a clinic estimate your ovarian reserve and predict how many eggs you might produce during IVF stimulation. A higher count usually means a stronger response.
For the full guide, including what the scan involves and how to read your result, see the antral follicle count test explained.
Sources and further reading
- ASRM: Ovarian reserve testing (2020). Ultrasound reserve markers.
Source links checked on 7 September 2026. This source check is separate from medical review.
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