In conclusion, while the study of families of patients with PCOS has shown that most characteristics of the syndrome are present in relatives of the patients, suggesting that up to 70% of patients with PCOS may have the genetic transmission of the syndrome, for many years, the search for specific gene candidate alterations was unsuccessful, with the exception of some uncommon polymorphisms of the AntiMullerian hormone (AMH) gene. Here, AMH is linked to polycystic ovary syndrome.