What is intersex?
• Gender Outsiders: Transgendered & Others
Androgen Insensitivity Syndrome (known as AOS in the Netherlands) falls under the general medical condition intersex. AIS is a condition where a person with XY chromosomes (which would normally indicate a male, as opposed to YY which is female) is not sensitive to androgens, so though they have an XY chromosome, they develop in a female direction. Complete AIS means that the person will look completely like a girl from the outside. However AIS is only one of about 75 different intersex conditions.
From: Understanding intersex