Prof. Dr. Hüseyin Özbey

Prof. Dr. Hüseyin Özbey completed his medical education at Istanbul Faculty of Medicine, Istanbul University and built his academic career at the same institution, specialising in pediatric surgery and pediatric urology. Between 1997 and 1998, he worked as a research fellow at the Department of Pediatric Surgery, Karl-Franzens University, Graz Medical School, Austria (Head: Prof. Michael Höllwarth) with an ÖAD Scholarship.

Between 2001 and 2002, he worked with Prof. Michael Höllwarth in the same department, holding an “Oberarzt” (senior physician) position conferred by the Austrian Federal Ministry of Health. Between 2004 and 2020, he served as professor at Istanbul Faculty of Medicine, and between 2017 and 2020 as Chair of the Division of Pediatric Urology. Between 2018 and 2025, he was a visiting professor at Sechenov First Moscow State Medical University, Russia’s largest state university. Since 2009, he has provided clinical consultations and surgical care at his private practice in Bakırköy, Istanbul.

He is the founder and former president of the Society for Sexual Development and Hypospadias (dsdturk.org) in Türkiye. Between 2017 and 2023, the society organized the Hypospadias Study Days, a highly standardized international meeting on hypospadias. Regarded as an authority in hypospadias and Disorders of Sex Development (DSD), he is the first surgeon to describe the septum glandis and the functional anatomy of the glanular urethra—structures overlooked throughout the history of hypospadias surgery. On this scientific basis, he developed the GFC (Glanular-Frenular Collar) technique, which achieves a fully anatomical repair without glans dissection and has entered the international medical literature.

He organised four international workshops (live surgery) on his technique alongside the last three Hypospadias Study Days meetings, and has taken part in numerous live workshops abroad as a speaker and trainer. In 2019, he was awarded “Pediatric Surgeon of the Year” by the Department of Pediatric and Adolescent Surgery at the Medical University of Graz for his surgical technique—a new concept for the anatomical correction of hypospadias.

In October 2023, he conducted a workshop on hypospadias surgery at Raparin Children’s Hospital in Erbil, Iraq, where he applied his technique. His latest work on hypospadias and penile curvature (Mechanics of multilayer flexible pipes: biomechanical insights on penis flexibility that can guide penis surgery) was presented at the 35th European Society for Paediatric Urology (ESPU) Congress in Vienna in September 2025. His research and publications on hypospadias continue with new concepts.