Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition defines gender identity disorder (GID) as a strong and persistent identification with the opposite sex and the distress that may accompany the incongruence between one's experienced or expressed gender and one's assigned gender. The onset of GID commonly begins early in childhood. Gender dysphoria has a higher prevalence of other comorbid psychiatric illnesses, such as mood, anxiety, and adjustment disorders, with increased suicide incidence and self-harming behaviors than the general population. Studies show that some temperamental, environmental, genetic, and psychological factors play a role in developing GID. Approximately 16% of transgender people and 21% of transgender women get incarcerated compared with the general US population. During incarceration, they face many issues, such as victimization, severe verbal harassment, purposeful humiliation, unwanted sexual advances, physical assault, forcible sex, and unwanted strip searches. There is a need for a better understanding of the issues and needs of this population to promote positive outcomes.