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Polycystic ovary syndrome: reproductive aspects 

Polycystic ovary syndrome: reproductive aspects
Chapter:
Polycystic ovary syndrome: reproductive aspects
Author(s):

Sophie Catteau-Jonard

, Cécile Gallo

, and Didier Didier

DOI:
10.1093/med/9780199235292.003.0851
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date: 19 June 2019

The polycystic ovary syndrome (PCOS) is the most common cause of anovulation and hyperandrogenism in women, affecting between 5 and 10% of women of reproductive age worldwide (1). Although this difficult topic in endocrine gynaecology is under extensive research, controversies still remain about the pathophysiology, diagnosis, and therapy of PCOS.

The PCOS phenotype can be structured in three components: manifestations of anovulation, hyperandrogenism, and the metabolic syndrome (of which hyperinsulinaemia secondary to insulin resistance is the central abnormality). The latter two are addressed in other chapters. Our knowledge about the mechanism of disturbed folliculogenesis in PCOS that is responsible for its reproductive aspects has much increased these last years, thus opening new avenues for the diagnostic and therapeutic approaches.

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