Abstract: The diagnosis criteria of adolescent polycystic ovary syndrome（PCOS） remains controversial. There is growing support for the Rotterdam criteria，to fit all three criteria：oligoovulation or anovulation,hyperandrogenism and polycystic ovaries on pelvic ultrasonography. The adolescent PCOS may be over-diagnosed by the standard ′two of three′ criteria. The rates of metabolic syndrome and sleep disorders are higher in those patients with the adolescent PCOS，which likely have implications on long-term health. The lifestyle modification should be included in the comprehensive treatment for the adolescent PCOS, such as diet，exercise and behavioral changes. Medicines are used to treat insulin resistance and metabolic dysfunction, such as insulin sensitizers.

Key words: Puberty, Insulin resistance, Polycystic ovary syndrome, Diagnosis, Therapy