This review summarises the knowledge of sex reassignment surgery in Denmark. Sex reassignment surgery aims at confirming a transgender person's gender identity and can consist of surgery on breasts, genitals, thyroid cartilage, vocal cords as well as facial and body contours. In Denmark, most procedures are performed at a highly specialised level after referral to Center for Gender Identity. Some choose to get procedures performed abroad. Depending on the surgical procedure additional surgery can be necessary, however, patient satisfaction is generally high. Surgery has been shown to increase patients' quality of life and decrease gender dysphoria.