How do I get treatment

For London Colorectal please telephone:

  • +44 (0) 20 7403 6061

For Gastroenterology please call:

  • +44 (0) 20 7234 2292


Mr Andrew Williams / Consultant General and Colorectal Surgeon

Mr Andrew Williams qualified form Guy’s and St Thomas’ Hospital in 1991 and is a specialist in pelvic floor surgery and assessment as well as anal fistula disease. His higher surgical training was undertaken in the South East London Region. His research was performed at St Mark’s and St Thomas’ Hospitals and was awarded his Master of Surgery in 2002. He was appointed as a Consultant Colorectal Surgeon to Guys and St Thomas’ Hospitals in 2003 and is the Clinical Director of the Pelvic Floor Unit and lead clinician for the enhanced recovery program for patients undergoing major colorectal surgery. He has a keen interest in the treatment and surgery for inflammatory bowel disease, including surgery for recurrent Crohn’s disease and ileo-anal pouch reconstruction for ulcerative colitis.



2002 Master of Surgery. University of London
2001 F.R.C.S. (Gen). Subspecialty: Colorectal surgery
1995 F.R.C.S. (Eng)
1991 M.B. B.S.
1988 B.Sc. UPPER SECOND CLASS in Basic Medical Science with Psychology


Chairman of Guy’s and St Thomas’ Pelvic Floor Group
Clinical Lead on Surgical Length of Stay, St Thomas’ Hospital
Clinical Lead for Enhanced Recovery Program St Thomas’ Hospital
Director of the Pelvic Floor Unit

Invited Lectures/meetings

St Mark’s Anal Endosonography Teaching Day 1999, 2000

Principles and Practice of Colorectal Surgery: 2003 - 2007 RCS (Faculty)
“Perineal sepsis and fistulae” “Stoma, making, reversing and complications”
“The perineum and prolapse”

Haemorrhoid Symposium 2003 & 2005 The Pelican Centre, Basingstoke
“Anatomy of the anal canal and haemorrhoids”

The Abdomino-Perineal Excision Workshop –Basingstoke 2003
“Anal canal anatomy and physiology”

ACPGBI M27 Course – Coloproctology for BST Portsmouth 2003-2006
“Faecal incontinence and anorectal physiology”

Fistula Study Day 2004 St Mark’s Hospital Faculty and lecturer

Regional IBD Forum St Thomas’ Hospital 2005
“Is there life after pouch?”

Intestinal and Anorectal Imaging Symposium St Mark’s 2005
“3D Anal Ultrasound Atrophy and Repair”

Pitfalls in Emergency Surgery RCS England 2005 “Fulminant Colitis”


  • National and regional trainer in Anal Ultrasound.

Co-author “Consensus statement on the Management of Anal Fistulae” ACPGBI 2006

For London Colorectal please call: +44 (0) 20 7403 6061