Endoscopy & Colonoscopy

If you have abdominal pain, discomfort or other symptoms which your general practitioner / doctor believes are related to the stomach, intestine or bowel, you may be referred to our surgical  gastroenterology team for further investigations.
In order to ascertain the origin of your symptoms, it may be necessary to look inside your stomach and duodenum (small bowel) or inside the large bowel. These procedures are referred to as endoscopy (gastroscopy) or colonoscopy.   

Whilst scans are very useful tests for examining the inside of the abdomen, they do not allow your doctors to look at the inside of the stomach or bowel and always see what is going on in the intestinal lining. An endoscopy or gastroscopy looks at the stomach & duodenum (1st part of the small bowel) whilst a colonoscopy is used to study the large bowel.  A flexible sigmoidoscopy is a colonoscopy that only looks at the 1st meter of so of the colon on the left side of the abdomen.  These tests make it possible to examine the lining surface of the stomach, duodenum and colon in order to identify ulcers, tears, points of bleeding, polyps, infections, inflammatory conditions and early (or advanced) cancers. 

These tests also allow the specialist to take small samples of tissue (biopsies) which are then sent to the laboratory for examination under the microscope.

A “scope” is essentially a small diameter flexible telescope equipped with a microchip camera and a bright light which allows the specialist to look directly inside the intestine to diagnose disease. 

The procedure is performed at the Specialist Medical Clinic as a day case/ambulatory procedure under intravenous sedation. Our team includes an anaesthetist whose job is to ensure you receive adequate safe sedation such that you are completely unaware of what is happening.  

Endoscopies (gastroscopies) typically take around 10 minutes to complete, however colonoscopy usually takes a little longer.

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Your Specialists

Don't judge another (wo)man until you have walked a mile in their moccasins "

(American First Nation proverb)

Mr. David Deardon BM MD FRCS FRCS(Ed)

Chief Executive / General Surgeon & Endoscopist

Areas of expertise

UK Trained Consultant General and Transplant Surgeon, now providing day case General Surgery and Surgical Gastroenterology to SMC

Education and professional training

Trained at Southampton Medical School (BM) 1984. Became a Fellow of both the Royal College of Surgeons of England (FRCS) and the Royal College of Surgeons of Edinburgh (FRCS Ed) in 1989. Completed EU Surgical Training in 1990 and UK Surgical Training in 1996. Completed my Doctorate at Manchester University in 1999

Professional Qualifications, Associations & Accomplishments

Over 20 published scientific papers in peer reviewed journals Presented and co-authored a number of scientific presentations at international congresses in Japan, Europe, India, USA and the UK. Accredited as a specialist in General Surgery in 1997 and joined the GMC’s specialist register.

Professional experience

Held consultant posts in Plymouth (Senior Lecturer /Associate Professor), Guys and St Thomas’s Hospitals London, Oxford Radcliffe (Honorary Tutor to Green College and involved in the initial development of the highly successful Oxford Pancreas and Non-heart beating kidney transplant programmes), the Western Infirmary, Glasgow (reintroduced the

Languages spoken



Doing exciting things with my family, travelling (to explore cultures and geography); philately, jigsaws and skiing.