Background: Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorder of reproductive age affecting 5% to 10% of women worldwide. It is a heterogenous, multifactorial, complex genetic disorder. PCOS receives a considerable attention because of its high prevalence and metabolic, reproductive and cardiovascular consequences.Methods: A cross sectional observation study of 100 PCOS patients was carried out between January 2014 to July 2015 in Gynaecology out-patient and Infertility OPD, Justice K. S. Hegde charitable hospital, Mangalore. The clinical, biochemical and hormonal profile of these patients were analysed and correlation was done between clinical features and biochemical and hormonal profile.Results: The prevalence of PCOS was 6.3% in the Gynaecology out-patient visits and 37.14% among infertile women. Menstrual irregularity was the most common complaint accounting for 31% followed by infertility (23%). Elevated leutinizing hormone and elevated LH: FSH was significant in irregular menstrual group. The prevalence of metabolic syndrome in our study was 21.3%. Spearmans correlation between various clinical and laboratory parameters showed menstrual cycle and body mass index(BMI) had a fair positive correlation and was significant. WHR (waist hip ratio) showed 21 times risk for metabolic syndrome.Conclusions: The study showed that most of our polycystic ovary syndrome subjects were hirsute, with central obesity and overweight or obese. Oligomenorrhea was the most common presentation. Among the various risk factors studied, WHR (waist hip ratio) showed 21 times risk for metabolic syndrome. Obese women with PCOS had more severe ovulatory dysfunction and need more attention for their appropriate management.