Sex reassignment surgery or SRS (also known as gender reassignment surgery, genital reconstruction surgery, gender confirmation surgery or sex realignment surgery) 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 socially associated with their identified gender. It is part of a treatment for gender dysphoria in transgender people. Related genital surgeries may also be performed on intersex people, often in infancy. A 2013 statement by the United Nations Special Rapporteur on Torture condemns the nonconsensual use of normalization surgery on intersex people.
Another term for SRS includes sex reconstruction surgery, and more clinical terms, such as feminizing genitoplasty or penectomy, orchiectomy, and vaginoplasty, are used medically for trans women, with masculinizing genitoplasty, metoidioplasty or phalloplasty often similarly used for trans men.
People who pursue sex reassignment surgery are usually referred to as transsexual (derived from "trans," meaning "across," "through," or "change," and "sexual," pertaining to the sexual --but not necessarily sexual actions--of a person). More recently, people pursuing SRS may identify as transgender as well as transsexual.
While individuals who have undergone and completed SRS are sometimes referred to as transsexed individuals, the term transsexed is not to be confused with the term transsexual, which may also refer to individuals who have not undergone SRS, yet whose anatomical sex may not match their psychological sense of personal gender identity.
The best known of these surgeries are those that reshape the genitals, which are also known as genital reassignment surgery or genital reconstruction surgery (GRS)- or bottom surgery (the latter is named in contrast to top surgery, which is surgery to the breasts; bottom surgery does not refer to surgery on the buttocks in this context). However, the meaning of "sex reassignment surgery" has been clarified by the medical subspecialty organization, the World Professional Association for Transgender Health (WPATH), to include any of a larger number of surgical procedures performed as part of a medical treatment for "gender dysphoria" or "transsexualism". According to WPATH, medically necessary sex reassignment surgeries include "complete hysterectomy, bilateral mastectomy, chest reconstruction or augmentation ... including breast prostheses if necessary, genital reconstruction (by various techniques which must be appropriate to each patient ...)... and certain facial plastic reconstruction." In addition, other non-surgical procedures are also considered medically necessary treatments by WPATH, including facial electrolysis.