Women with polycystic ovary syndrome (PCOS), a leading cause of infertility, may ovulate more often if they take the B vitamin inositol. There are actually excellent studies with the dietary supplement myo-inositol and polycystic ovary syndrome (PCOS), showing significant benefit. Metformin like a few months of decreasing intake of sugar and refined carbohydrates and daily exercise also improves fertility rates in PCOS. Metformin has always been the drug of choice for women with PCOS as it decreases the production of glucose. Women with PCOS have often insulin resistance or even type 2 diabetes. Metformin can reduce insulin levels and improve the regularity of PCOS women’s menstrual cycles, helping them to conceive. Inositol shows good results with less side effects than metformin And seems to be a promising first-line treatment for women with PCOS to conceive and improve insulin levels.