The ex-gay movement consists of people and organizations that encourage people to refrain from entering or pursuing same-sex relationships, to eliminate homosexual desires, to develop heterosexual desires, or to enter into a heterosexual relationship.
The ex-gay movement relies on the involvement of individuals who formerly identified as gay, lesbian, or bisexual but no longer do; these individuals may either claim that they have eliminated their attraction to the same sex altogether or simply that they abstain from acting on such attraction.
There have been various scandals related to this movement, including some self-claimed ex-gays having been found in same-sex relationships despite having denied this, as well as controversies over gay minors being forced to go to ex-gay camps against their will, and overt admissions by organizations related to the movement that conversion therapy does not work.
A large body of research and global scientific consensus indicates that being gay, lesbian, or bisexual is compatible with normal mental health and social adjustment. Because of this, major mental health professional organizations discourage and caution individuals against attempting to change their sexual orientation to heterosexual, and warn that attempting to do so can be harmful.