Sex reassignment surgery (initialized as SRS; also known as gender reassignment surgery (GRS), genital reconstruction surgery, sex affirmation surgery, gender confirmation surgery, sex realignment surgery, or, colloquially, a sex change) is the surgical procedure (or procedures) by which a transgender person's physical appearance and function of their existing sexual characteristics are altered to resemble that of their identified gender. It is part of a treatment for gender dysphoria in transgender people. It may also be performed on intersex people, often in infancy and without their consent. A 2013 statement by the United Nations condemns the nonconsensual treatment of normalization surgery to treat intersexuality.