Androgen insensitivity syndrome: MedlinePlus Medical Encyclopedia

Androgen insensitivity syndrome (AIS) is when a person who is genetically male (who 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 traits of a woman, but the genetic makeup of a man.

Source: Androgen insensitivity syndrome: MedlinePlus Medical Encyclopedia

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