A Colonoscopy is a diagnostic procedure test of the large bowel. It shows polyps, cancer, inflammation, bleeding sources; polyps can be removed. No ionising radiation when done without X-ray guidance.
General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
Polyps, cancer, inflammation, bleeding sources; polyps can be removed.
Blood in stool, change in bowel habit, screening.
Bowel preparation the day before with a clear-fluid diet, as instructed.
No ionising radiation when done without X-ray guidance.
20 to 45 minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
Diagnostic procedure
Consult a doctor to interpret results — a single test does not make a diagnosis.
Uses your location once to list the nearest facilities. Nothing is stored.
What does a colonoscopy show?
Polyps, cancer, inflammation, bleeding sources; polyps can be removed.
Why is a colonoscopy done?
Blood in stool, change in bowel habit, screening.
How do I prepare for a colonoscopy?
Bowel preparation the day before with a clear-fluid diet, as instructed.
Does a colonoscopy use radiation?
No ionising radiation when done without X-ray guidance.
How long does a colonoscopy take?
20 to 45 minutes
Why is Colonoscopy done?
Blood in stool, change in bowel habit, screening.
How do I prepare for Colonoscopy?
Bowel preparation the day before with a clear-fluid diet, as instructed.
Is Colonoscopy safe in pregnancy?
No ionising radiation when done without X-ray guidance.
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