Since the 1990s , transsexual has generally been used to describe the subset of transgender people who desire to transition permanently to the gender with which they identify .
Who seek medical assistance ( for example , sex reassignment surgery ) with this .
Since the 1990s , transsexual has generally been used to describe the subset of transgender people who desire to transition permanently to the gender with which they identify and who seek medical assistance ( for example , sex reassignment surgery ) with this .