The estimated 5-10% prevalence of PCOS is reported in women of reproductive age. A study from Spain also reported that 28.3% prevalence rate of PCOS is among 113 overweight or obese women who were referred to an endocrinology clinic for weight loss. This data was compared with a previously reported prevalence of 6.5% which suggests that the prevalence of PCOS might be markedly increasing with obesity.