Furthermore, it is known that Endothelial progenitor cells (EPC) be an early marker of cardiovascular disease, we would like to know the role of EPC to predict metabolic syndrome in women with PCOS. Wan-Fang hospital has a professional team in PCOS treatment and research which including gynecological endocrinologist, cardiologist, medical endocrinologist, specialist in weight reduction. This team had been working well for more that 4 years.