In 46,XY individuals, the etiology of DSD is classified into: disorders of gonadal development (or gonadal dysgenesis), disorders of androgen synthesis (in non-dysgenetic gonads), disorders of androgen action, and disorders of AMH synthesis or action (resulting in the Persistent Müllerian Duct Syndrome, PMDS) (36). This evidence concerns the gene AMH and Persistent Müllerian duct syndrome.