Gender dysphoria (GD) is the distress a person feels due to a mismatch between their gender identity and their sex assigned at birth. People with gender dysphoria are typically transgender. The diagnostic label gender identity disorder (GID) was used until 2013 with the release of the DSM-5. The condition was renamed to remove the stigma associated with the term disorder.
Gender nonconformity is not the same thing as gender dysphoria. According to the American Psychiatric Association, the critical element of gender dysphoria is "clinically significant distress".
Evidence from studies of twins suggests that gender dysphoria likely has genetic causes in addition to environmental ones. Some transgender people and researchers support declassification of the condition because they say the diagnosis pathologizes gender variance and reinforces the binary model of gender.
Treatment for gender dysphoria may involve supporting the person through changes in gender expression. Hormone therapy or surgery may be used to assist such changes. Treatment may also include counseling or psychotherapy.