The surgical procedures to change a person's existing physical (sexual) appearance and function to that of the opposite sex. Other terms for SRS include sexreassignment surgery, sex reconstruction surgery, genital reconstruction surgery, gender confirmation surgery, and more recently sex affirmation surgery. The commonly used terms sex change or sex change operation are considered factually inaccurate. The terms feminizing genitoplasty and masculinizing genitoplasty are used medically.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).