The polycystic ovary syndrome is a common endocrine disorder of unknown etiology, which affects 10% of the women, whose clinical manifestations include menstrual irregularities, signs of hyperandrogenism and obesity. It has been found associations with resistance to the insulin with increase risk of type 2 diabetes mellitus and cardiovascular disease. Likewise risk is described of preeclampsia, endometrial hyperplasia, endometrial cancer and infertility. This syndrome is a heterogeneous disorder, with genetic evidence based on studies of families with inheritance autosomal dominant and has themselves identifying a high candidates genes number. Three of the most studied have been the gene of the receiver of insulin, the region encode of sex ...