Broadly speaking, transgender people are individuals whose gender expression and/or gender identity differs from conventional expectations based on the physical sex they were born into.

Transgender can include a number of sub-categories, which, among others, including transsexual, cross-dressing, transvestite, consciously androgynous people, people who are genderqueer, people who live cross-gender, gender blenders, butch women, effeminate men, drag kings and drag queens, among many others. Usually not included, because in most cases it is not a gender issue (although in practice the line can be hard to draw) are transvestic fetishists.