Rotterdam criteria

The Rotterdam criteria are the diagnostic framework most commonly used to diagnose polycystic ovary syndrome (PCOS). A diagnosis requires at least two of three features: irregular or absent ovulation, clinical or biochemical signs of raised androgens, and polycystic-appearing ovaries on ultrasound, after excluding other conditions that can cause similar findings such as thyroid disorders or raised prolactin. Because the criteria allow different combinations of features, two people diagnosed with PCOS can have quite different symptoms. Indian clinical guidance follows this framework alongside careful exclusion of look-alike conditions before confirming the diagnosis.

Also known as: PCOS diagnostic criteria

Last reviewed: 9 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.