Horace Roman is an endometriosis surgeon at IFEMEndo, Clinique Tivoli-Ducos in Bordeaux (France), and professor of endometriosis surgery at the Medical University of Aarhus (Denmark). His practice and clinical research focus is on the surgical management of patients with advanced endometriosis. He has managed more than 1200 patients with deep endometriosis infiltrating the digestive tract, 250 with endometriosis of the urinary tract, and 90 with endometriosis of the sacral roots and sciatic nerves. He has worked on conservative procedures in deep endometriosis of the rectum, and performed more than 330 rectal disc excisions. His approach to ovarian endometriomas is based on the ablation of the inner surface of the cyst using plasma energy, with the aim of preserving ovarian parenchyma and ovarian reserve. He performed the ENDORE randomised trial comparing radical and conservative surgery for colorectal endometriosis, and the MESURE randomised trial comparing medical and surgical management of rectal endometriosis. He is member of the boards of the European Endometriosis League, World Endometriosis Society, and French Society of Gynecologic and Pelvic Surgery.