Condition in which a child is born with the male XY chromosome pattern, but the external physical characteristics of a female. The body cells are insensitive to the male hormone (testosterone) produced by the testicles, and therefore the fertilized ovum develops and is born as a.girl, despite the presence of testicles. At puberty the family doctor is usually consulted because menstruation has not started, and he establishes that the patient has a normal female exterior, normal breast development, a feminine figure, but no pubic or underarm hair. Usually there is a normal vagina, ending blind (because the womb is missing), and often an inguinal hernia on both sides containing small, non-functioning

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