Clinical features | Hirsutism | There're pelages around anocheilon, lower mandible, areola mammae and the midline of inferior belly etc. Note:Although some patients have acnes, our gynecologists mainly rely on the hirsutism as the clinical features of hyperandrogenism. |
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Biochemical indices | Total testosterone (T) in the serum (nmol/L) | Normal: < 1.4; Hyperandrogenism: > 1.4(during the third to the fifth day of the menstrual cycle) |
The criteria of PCO | Â | 1. The follicular phase ovary lacking follicles larger than 10 mm in diameter |
 |  | 2. The presence of 12 or more follicles measuring 2–9 mm in diameter, or increased ovarian volume (>10 mL) |