Mr Barnaby Barrass

Consultant Urological Surgeon

BSc (Hons), MBBS, MD, FRCS (Urol), PGCME

"I love working at Spire Harpenden. It is very inspiring to work in such a friendly, well-organised and above all patient-focussed environment."

Specialises in

I have been a qualified doctor for over 24 years and a qualified consultant urologist for over 11 years, having completed training in London, Bristol and the Cambridge training rotation. I have particular expertise in urological diagnostics and set up one of the first urology "one stop" clinics in the country, a successful project that was featured in the annual hospital awards and significantly reduced waiting times for patients. I also specialise in a number of minimally invasive techniques to improve outcomes and experiences for patients and have successfully introduced several of these into my department.

I specialise in minimally invasive techniques for urological patients and have successfully introduced enhanced diagnostics for bladder cancer (blue light cystoscopy), office based trans-perineal prostate biopsy, prostatic urothelial lift (Urolift) and hyperthermic mitomycin for bladder cancer. I also specialise in laser prostate surgery (HoLEP), the treatment of non-muscle invasive bladder cancer, active surveillance in prostate cancer and ureteroscopy and laser stone surgery. I am happy to see patients across the majority of general adult urology.

During 24 years of practice I have performed over 14,000 surgical procedures including over 1,200 prostate biopsies (the last 780 of which have been transperineal), 690 bladder cancer resections, 325 circumcisions and 560 procedures to relieve benign prostatic obstruction. I work in one of the highest volume centres in the UK for laser prostate surgery and I have personally performed well over 200 holmium laser enucleations of the prostate (HoLEP) and I train senior trainees from all around the UK in this technique. I have also performed over 400 ureteroscopy procedures.

I am the lead clinician for urological cancer in our department and I oversee all aspects of the cancer service in our department. I have introduced several new techniques to improve cancer diagnostics and treatment in my department. I also led the response for urology cancer during the Covid pandemic, including the development of PPE protocols, prioritisation of patients for treatment and the relocation of prostate cancer biopsies from theatre into our outpatient clinic. This enabled us to maintain a continuous service for the diagnosis and treatment of urological cancer for our patients throughout the pandemic.

I am passionate about medical education and completed a post graduate certificate in medical education in 2011 at the University of Bedfordshire Post Graduate medical school. I have also been a tutor at the University of East Anglia facilitating problem based learning and communication skills training for medical undergraduates at the medical school between 2010 and 2013. I maintain an interest in education and I am currently educational supervisor for three trainees and regularly teach medical undergraduates. I am also an examiner for the medical school finals and FRCS (Urology) examination course and faculty on the national urology Boot camp and a twice yearly national FRCS (Urol) revision course.

I continue to maintain an interest in clinical research and have been lead local investigator for several national trials in recent years. I have over 30 publications in urological topics, I have given over 70 presentations at regional, national and international meetings and I have been awarded 11 regional, national and international prizes for my work. I have been awarded three grants for my research, including a British Urological Foundation Fellowship.

I am passionate about delivering the best possible care for my patients and I have a particular interest in streamlining and improving access to healthcare and the use of novel and minimally invasive treatments to reduce morbidity and improve outcomes for patients.


Treatment information

Some of the principal treatments carried out by Mr Barnaby Barrass at Spire include:


Other treatments

  • Laser prostate surgery (HoLEP)
  • Photodynamic diagnosis (blue light cystoscopy)
  • Prostatic Urothelial lift (Urolift)
  • Ureteroscopy and laser stone treatment

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Additional information

Benign prostate diseases
Bladder cancer
Bladder/ kidney stone disease
Erectile dysfunction
Female urology
Hypospadias surgery
Kidney cancer
Male infertility
Prostate cancer
Urinary tract infections
Urological cancers
Urological pathology

MBBS / Royal Free Hospital School of Medicine (University of London) / 1998
Bachelor of Medicine, Bachelor of Surgery

BSc (Hons) / Royal Free Hospital School of Medicine, University of London / 1997
Bachelor of Science
I took a year between pre-clinical and clinical training to undertake an intercalated degree researching molecular biology and tumour targeting in cancer.

MRCS / Royal College of Surgeons of England, London / 2001
Membership of the Royal College of Surgeons

MD / University of London / 2006
Doctor of Medicine

FRCS / Royal College of Surgeons of England, London / 2009
Fellowship of the Royal College of Surgeons

PGCME / University of Bedfordshire Post Graduate Medical School / 2011
Postgraduate Certificate in Medical Education

Professional memberships

The Royal College of Surgeons of England

The British Medical Association

The British Association of Urological Surgeons

The Medical Defence Union

The Higher Education Academy

Professional leadership

Lead clinician for urological cancer at The Luton and Dunstable University Hospital

Luton and Dunstable University Hospital (Bedfordshire Hospitals NHS Foundation Trust)

I am married and live locally. I enjoy running and have competed in several international marathons including New York, London, Tokyo and all the world marathon majors across the globe, with competitive times and national rankings.

The arrival of my young daughter means that I now tend spend more time watching, rather than playing sport and time with my growing family is now the greatest pleasure in my life.