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Procedure

Colonoscopy

Comprehensive examination of the large intestine and colon.

Overview

A colonoscopy examines the entire large intestine using a flexible scope. It's the gold standard for diagnosing colon problems and the best tool we have for detecting colon cancer early — when it's most treatable. Small polyps can also be removed during the procedure itself.

When it’s recommended

  • Persistent change in bowel habits
  • Blood in stools
  • Unexplained weight loss or abdominal pain
  • Iron-deficiency anaemia of unclear cause
  • Colon cancer screening (typically age 45+)
  • Follow-up if you've had polyps before

What to expect

The procedure takes about 20–45 minutes. You'll receive sedation. The scope is gently advanced through the entire colon. If polyps are found, they're usually removed during the same procedure and sent for testing.

Preparation

A clear colon is essential. You'll follow a specific bowel preparation the day before — clear liquids only, plus a prescribed laxative solution. We provide detailed written instructions when you book.

Recovery

Rest for 30–60 minutes after the procedure. Some bloating or mild cramping is normal. You shouldn't drive for the rest of the day. Most patients return to normal eating and activities by the next day.

This is general information, not a substitute for medical advice. For guidance specific to your case, please consult Dr. Ch. Saikumar or another qualified specialist.

Patient questions

Colonoscopy — common questions

Answers to the questions we hear most often about colonoscopy.

Is colonoscopy painful?
No. Most patients receive sedation and sleep through the procedure. Some mild gas or cramping afterwards is normal and settles within an hour or two.
How long does colonoscopy take?
The procedure itself takes 20–45 minutes. With sedation and recovery, plan for 2–3 hours total at the hospital.
How is the bowel preparation done?
Clear-liquid diet the day before, then a prescribed laxative solution in the evening and early morning of the procedure. Detailed written instructions are provided when you book.
What happens if polyps are found?
Most polyps are removed during the same procedure (polypectomy) and sent for pathology. You'll get the findings and a recommended follow-up timing — usually 3 to 10 years — once the report is back.
Is colonoscopy safe?
Very safe. Colonoscopy is one of the most performed GI procedures globally. Serious complications occur in fewer than 1 in 1,000 procedures, and we monitor closely throughout.
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