How Follicles Are Measured?

An evaluation of follicles involves a pelvic ultrasound scan of your womb and ovaries as well as an Anti-Mullerian Hormone blood test. The pelvic ultrasound scan will assess the size and number of follicles present on your ovaries called an Antral Follicle Count.

What is a good size for a follicle?

Before ovulation occurs, the average diameter of a dominant follicle is 22 to 24 mm. The dominant follicle has the quickest growth and largest size. However, the growth of a follicle does not always mean that it contains a mature egg.

How do you measure follicles on ultrasound?

For round follicles, only one measurement is required; for oval follicles, the mean of two diameters is calculated (greatest diameter and greatest diameter perpendicular to it)1. The number of follicles measuring < 2 mm or > 10 mm is subtracted from the total number of identifiable follicles.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.