She has written many journal articles and books, including Gender Identity Disorder and Psychosexual Problems in Children and Adolescents (with Kenneth Zucker) and Affect Regulation and the Development of Psychopathology.
She is a Professor Emerita in the Department of Psychiatry at University of Toronto and a fellow of the Royal College of Physicians.
In the late 1970s, Bradley founded the Child and Adolescent Gender Identity Clinic at the Clarke Institute of Psychiatry.
[4] In collaboration with her co-author Kenneth Zucker, Bradley saw over 400 cases of children and adolescents with gender dysphoria and related issues.
Bradley served the American Psychiatric Association DSM-IV Subcommittee on Gender Identity Disorders.