Pietro Giulio Signorile, MD, is a physician and surgeon specializing in gynecology and obstetrics. He founded the Italian Endometriosis Association (Associazione Italiana Endometriosi Onlus) in 2001 and the Italian Endometriosis Foundation (Fondazione Italiana Endometriosi ETS, Rome) in 2007, of which he is president and scientific director; the Foundation conducts research on endometriosis and provides information, support, and care to affected women. Since 2007, he has been a member of the “Salute Donna” (Women’s Health) Commission of the Italian Ministry of Health. His research focuses on the pathogenesis of endometriosis and adenomyosis, including the embryonic origin of endometriosis, the effects of endocrine disruptors in experimental models, the histological definition of microscopic adenomyosis, and the development of monoclonal antibodies for endometriosis, on which he holds Italian and international patents (2023). He is the author of numerous peer-reviewed publications and several books on endometriosis for clinicians and the general public.