The document provides an overview of the history and current standards of care for treating transgender individuals. It discusses the evolution of diagnostic criteria and treatment protocols over time, from early experimentation in the 1900s to current guidelines. The current standards outlined in the Harry Benjamin Standards of Care include requirements for mental health professionals to accurately diagnose individuals, provide psychotherapy, and make formal treatment recommendations. It also outlines the current diagnostic criteria for gender identity disorder under the DSM-IV and protocols for psychotherapy, hormone therapy, and gender-affirming surgery.