Table 1.

Summary of diagnostic criteria for Polycystic Ovary Syndrome according to three different groups

Rotterdam	NIH/NICHD	Androgen Excess Society
PCOS is considered a diagnosis of exclusion.	PCOS is considered a diagnosis of exclusion.	PCOS is considered a diagnosis of exclusion.
Diagnosis requires two of:	Diagnosis requires all of:	Diagnosis requires all of:
Hyperandrogenism	Hyperandrogenism	Hyperandrogenism
Polycystic ovaries	Menstrual disturbance	Polycystic ovaries and/or ‘ovarian dysfunction’
Anovulation/oligo-ovulation

Adapted from ‘Epidemiology, diagnosis, and management of polycystic ovary syndrome’ (2014) [6]

NIH/NICHD National Institute of Health/National Institute of Child Health and Human Disease, PCOS polycystic ovary syndrome