Prof. Dr. Semih Ayan

Prof. Dr. Semih Ayan is an internationally trained and highly experienced urologist, with special expertise in urologic oncology, pediatric urology, and minimally invasive (laparoscopic/ endoscopic/ percutaneous) urological surgeries. Over two decades of practice — combined with fellowships at renowned institutions such as Harvard Medical School and University of Chicago — equip him with advanced skills in diagnosing and treating complex urinary tract and urogenital conditions. And his Specialties / Area of interests:

• Urologic oncology: kidney cancer, bladder cancer, prostate cancer, other urinary tract tumors.
• Pediatric urology: congenital urinary disorders (e.g. vesicoureteral reflux, ureteropelvic junction obstruction), urinary tract malformations, pediatric urological diseases.
• Urinary stone disease: kidney, ureter, bladder stones — endoscopic & percutaneous stone removal surgeries.
• Benign urological conditions: prostate enlargement/hyperplasia, urinary outlet obstruction, urinary reflux, urinary incontinence, urethral strictures, hypospadias, etc.

He has authored multiple peer‑reviewed research publications — especially in areas like pediatric urology, urologic oncology, and pathophysiology of urogenital disorders.

• Specialist in Urology — graduated from Cumhuriyet University (Sivas, Turkey), Urology Specialist, 1997.
• Post‑doctoral Research Fellow in Pediatric Urology — Harvard Medical School / Children’s Hospital, Boston, USA (1999–2000).
• Associate Professor of Urology (2003).
• Professor of Urology (since 2009).
• Clinical Fellowship in Minimally Invasive Urologic Oncology — University of Chicago, USA (2014–2015).
• Holds credentials: US Medical License (USMLE), European Board of Urology certification.

• Kidney cancer / Kidney tumors / Renal cell carcinoma.
• Bladder cancer / Bladder tumors / Urothelial cancer.
• Prostate cancer / Prostate enlargement / Benign Prostatic Hyperplasia (BPH) / Prostate diseases.
• Urinary stone disease — kidney stones, ureteral stones, bladder stones.
• Pediatric urinary tract conditions: vesicoureteral reflux, ureteropelvic junction obstruction, urinary reflux to kidney, hydronephrosis, hypospadias, congenital urinary malformations.
• Urinary tract infections, urinary outlet obstruction, urinary incontinence, urethral strictures, varicocele, hydrocele, male infertility / fertility‑related issues via urology.

• Hydrocele Surgery
• Kidney Stone Removal Surgery
• Kidney Transplant
• Prostatectomy
• Rezum Water Vapor Therapy
• Transurethral Resection of the Prostate (TURP) Surgery
• Urethral Stricture Surgery
• Vesicovaginal Fistula (VVF) Treatment
• Laparoscopic surgeries (minimally invasive urologic surgeries)
• Pediatric urological corrective surgeries