| Two of the following three criteria must be fulfilled: |
| (i) A clinical diagnosis of oligomenorrhoea or amenorrhoea |
| (ii) Clinical or biochemical evidence of hyperandrogenism |
| (iii) Polycystic ovaries on ultrasound examination (either 12 or more follicles measuring 2–9 mm |
| in diameter, or an ovarian volume of >10 cm3) |
| Late onset congenital adrenal hyperplasia, androgen secreting tumours, and Cushing’s |
| syndrome must be excluded in women with raised androgens; thyroid disorders and raised |
| prolactin should be excluded in women with menstrual disturbances. |