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020 7188 5197

Dr Arun Sahai

Dr Arun Sahai

PhD, FRCS (Urol), BSc (Hons)

Consultant urological surgeon and honorary senior lecturer

Arun Sahai is a consultant urological surgeon in functional urology (bladder dysfunction, incontinence, uro-neurology and urinary tract reconstruction) at Guy’s and St Thomas’. He is also an honorary senior lecturer within King’s Health Partners.

Arun investigates and manages all aspects of general urology including scrotal surgery, circumcision and benign prostatic enlargement. His specialist work involves management of female and male urinary incontinence, botulinum toxin bladder injections and sacral neuromodulation for refractory overactive bladder and various aspects of ureteric and bladder reconstruction.

Special interests

Arun has over 60 publications in peer-reviewed journals and has contributed to a number of book chapters and presented at numerous international and national meetings. He has been awarded several prizes and grants. His current research interests are related to overactive bladder and bladder dysfunction. He is a keen teacher and is responsible for urology undergraduate education at Guy’s and St Thomas’ and King’s Medical Schools.


  • Stress incontinence in women – mid urethral synthetic tapes such as TVT/TVTO, autologous fascial sling, colposuspension, urethral bulking injections
  • Stress incontinence in men – male slings, artificial urinary sphincter implantation
  • Overactive bladder syndrome – Botulinum toxin bladder injections, sacral neuromodulation
  • Painful bladder syndrome/interstitial cystitis
  • Complex lower urinary tract symptoms
  • Recurrent UTIs
  • Neurological bladder – multiple sclerosis, spinal cord injury, stroke
  • Urinary tract reconstruction surgery: vesico-vaginal fistula, urethral diverticulum, augmentation cystoplasty for overactive bladder, bladder replacement and both continent (mitrofanoff) and incontinent (ileal conduit) urinary diversions


  • 1999: Qualified from the United Medical & Dental Schools of Guy’s and St Thomas’. Trained in urology on the South Thames Rotation through the London Deanery.
  • Senior training years in the Department of Urology at Guy’s Hospital, followed by visiting fellowship at UZ Leuven Hospital, Belgium.
  • 2010: Completed PhD thesis on botulinum toxin and refractory overactive bladder

Membership of professional bodies

  • British Association of Urological Surgeons (BAUS)
  • European Association of Urology
  • International Continence Society
  • Royal College of Surgeons of England

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