In a majority of cases, gender dysphoria is recognized by the time the person begins grade school. Young transsexuals find that their natural behaviors are not accepted by those around them. This means they must suppress their natural tendencies and try hard to conform and fit in. Eventually the conflict reaches a point that it interferes with daily living. This is not known for sure.
Some theorists describe transsexuality as a birth defect.
A disturbed interaction between the brain and sex hormones of the developing fetus. Some theorists believe that the mother's physical and mental health during pregnancy could effect the unborn child's gender identity. History of Transexuality Transgendered people have always existed throughout history. Incidents are recorded in Greek and Roman history. In 1919 Magnus Hirschfeld founded the Institute for Sexology in Berlin, Germany.