Medical articles of Colonoscopy

14/05/2026
Mr Trif Papettas
Consultant colorectal and general surgeon
When should you consider having a colonoscopy?
A colonoscopy is an exam of the colon and rectum using a long flexible tube with a camera and light at the end. It is used to investigate changes or abnormalities within bowel function, and is one of the standard tests for diagnosing colon cancer, but it has a variety of applications in the prevention and early diagnosis of many colorectal diseases. In this article, a consultant colorectal surgeon explains the ways doctors utilise colonoscopies, what happens during them, and when patients should undergo one.
14/04/2026
Dr Jonathan Landy
Gastroenterologist
Colonic polyps removal: methods, procedures and what to expect
Colonic polyps are commonly identified during bowel investigations, particularly colonoscopy, and whilst many are benign, some have the potential to progress to bowel cancer over time.
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11/02/2026
Ms Rana Madani
Colorectal Surgeon
What to expect before and after a colonoscopy
A colonoscopy is a common and highly effective procedure used to investigate bowel symptoms and screen for bowel cancer. Despite this, many patients understandably feel anxious about what it involves.
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10/10/2025
Professor Sauid Ishaq
Gastroenterologist
Underwater colonoscopy: what it is and how it differs from standard colonoscopy
Colonoscopy remains the gold standard for detecting and monitoring conditions affecting the large bowel, such as colorectal cancer, polyps, and inflammatory bowel disease. However, advances in technique have led to refinements that can improve patient comfort and the quality of the procedure. One such technique is the underwater colonoscopy, which is gaining attention for its potential benefits over traditional methods, as a consultant gastroenterologist explains in this article.
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24/09/2025
Mr Jonathan van Dellen
Consultant colorectal and general surgeon
What to expect before rectal prolapse surgery: preparation and tests
Rectal prolapse is a condition in which part of the rectum—the final section of the bowel—protrudes through the anus. It can cause discomfort, incontinence, a feeling of incomplete bowel emptying, and visible protrusion during bowel movements. While it is more common in older adults, particularly women, it can occur in individuals of any age. In this article, a consultant colorectal surgeon explains what to expect before rectal prolapse surgery so that patients feel more confident and well-prepared for their treatment journey.
24/09/2025
Written by Top Doctors
Endoscopy vs. colonoscopy: Which test is best for bowel cancer screening?
In this article, a consultant gastroenterologist and specialist endoscopist outlines the differences between endoscopy and colonoscopy.
16/09/2025
Dr Faidon Laskaratos
Gastroenterologist and specialist endoscopist
Colonoscopies: what to know
Colonoscopy is one of the essential procedures for diagnosing and investigating conditions that can affect the colon, rectum, and bowels. In this article, a consultant gastroenterologist explains what happens during a colonoscopy and what diseases and illnesses it can be used to diagnose.
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03/06/2025
Dr Omer Ahmad
Consultant gastroenterologist and interventional endoscopist
Understanding bowel cancer and the importance of early detection
Bowel cancer occurs in the colon or rectum of the large bowel. In this article, a consultant gastroenterologist and endoscopist explains the symptoms of bowel cancer, and how it can be diagnosed using colonoscopy.
02/06/2025
Dr Alissa Walsh
Gastroenterologist
Blood in stool: why an endoscopy or colonoscopy could be crucial for detecting colorectal cancer
In this article, a consultant gastroenterologist and endoscopist explores the reasons for blood in stool, and explains how diagnostic procedures like endoscopy and colonoscopy are utilised.
15/04/2025
Dr Jonathan Landy
Gastroenterologist
Bowel cancer and the importance of screening
Bowel cancer is one of the most common cancers, most often diagnosed in patients over the age of 50. In this article, a consultant gastroenterologist explains diagnostic methods for bowel cancer, and the benefit of screening.
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