ABSTRACT
Polycystic ovary syndrome (PCOS) is a complex endocrine disorder affecting 18-22% of reproductiveaged women. According to the Rotterdam criteria, PCOS is diagnosed by any two of the following three criteria: oligo- or anovulation, clinical and/or biochemical hyperandrogenism, and polycystic ovaries. Four different phenotypes (A-D) of PCOS are identified assuming these three criteria. Heterogenous PCOS phenotypes might additionally include insulin resistance, hyperinsulinemia, hypertension, dyslipidemia, obesity, hirsutism, acne, infertility, as well as increased risk of metabolic syndrome and type 2 diabetes mellitus, decreased quality of life and impaired psychological function.As a promise, research suggests supplementing with inositol, former vitamin B-8, can help address various aspects of this condition.