Polycystic ovary syndrome (PCOS) constitutes the main cause of anovulatory sterility with a near occurrence to 7 %. The PCOS have not a constant hormonal profile, for it has been necessary the employment of approaches like those of Rotterdam to establish the presence of this dysfunction. A surprising discovery was the demonstration of the effect of the insulin on the ovary, that which modified the concept of the specificity in the action of the insulin on certain tissues, therefore a resistance stage to the action of insulin induces a compensatory hyperinsulinism to try to stimulate all the tissues, but in secondary form increases the dysfunction of the ovarian steroidogenesis. There are drugs known as "insulin sensitizers", used in the treatment of certain forms of diabetes mellitus, among those are metformin and tiazolidinediones (roziglitazone and pioglitazone), recently a compound has been used with formulation of amino acids and oligoelements (Diamel) that neutralizes the free radicals reestablishing the intracellular signs of the insulin at cellular level. It is important to guide that long term without correct the PCOS could have back effect since the insulin resistance is associates to a higher risk of increasing impaired glucose, diabetes, dyslipidemia, atherosclerosis and vascular disease. Therefore, preventive measures should be implemented that at present time are to the reach.