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Fertility Glossary

Polycystic ovarian morphology

The ultrasound appearance of many small follicles in the ovaries.

Conditions

Polycystic ovarian morphology means the ovaries contain many small follicles or have an increased volume on ultrasound. It is one of the three diagnostic criteria for PCOS but is not a diagnosis by itself — plenty of people with this appearance ovulate regularly and have no symptoms. Ultrasound criteria are also not used to diagnose PCOS within about eight years of the first period.

Also known as: PCOM, polycystic appearance

Sources

  • Royal Australian and New Zealand College of Obstetricians and Gynaecologists (ranzcog.edu.au)

Last reviewed: 10 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.

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