



Androgen insensitivity syndrome (AIS) is when a person who is genetically male (has one X and one Y chromosome) is resistant to male hormones called androgens. As a result, the person has some or all of the physical characteristics of a woman, despite having the genetic makeup of a man.
The syndrome is divided into two main categories: complete and incomplete. Complete AIS results in someone who looks female. In the incomplete AIS syndrome, the degree of sexual ambiguity varies widely from individual to individual.
Testicular feminization