Dr Mark Scott

Dr Mark Scott

Director of Lower GI Physiology and author

BSc (Hons) PhD

Dr Mark Scott PhD is our Director of Lower GI Physiology. He has over 25 years’ clinical and academic experience relating to the physiological assessment of functional colorectal disorders, primarily constipation and faecal incontinence.

Mark is also a principal investigator at the Blizard Institute at Queen Mary University of London, the largest institute of Barts and The London School of Medicine and Dentistry.

He is a founding director of the internationally renowned GI (Colorectal) Physiology Unit at Barts. Every year, around 1,000 patients undergo diagnostic investigations there, providing the resources for allied research.

Mark is currently a member of the European Society of Neurogastroenterology and Motility Working Team, which sets guidelines for the management of constipation. He is also one of the leads on an international anorectal physiology working group into the standardisation of diagnostic testing.

He has supervised numerous postgraduate students (both clinical and scientific) to the successful completion of their higher degrees.


Mark is the UK’s most widely published colorectal gastrointestinal physiologist, having written 160 original articles and 11 book chapters. He has been guest editor of 3 journal supplements on the subject of chronic constipation.

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Symptoms we can help with

If you’re having problems with your stomach, digestion or going to the toilet, we can help find out what’s wrong.

Full list of symptoms

My experience with the Functional Gut Clinic has been nothing short of outstanding. Every person I have dealt with has gone the extra mile to put me at ease, reassure me and shown great care, sensitivity and patience. I am truly very grateful to you all and would ask that you pass my thanks on to Dr. Scott too!

London Patient