In this guide
7 min readProcedure Guide
Colonoscopy examines the large intestine and rectum. It may help diagnose blood in stool, chronic diarrhea, constipation, colon polyps, inflammatory bowel disease and colon cancer risk.
Key Takeaways
- Blood in stool or rectal bleeding
- Chronic diarrhea or constipation
- Unexplained anemia or weight loss
- Colon polyps or family history of colon cancer
- Avoid restricted foods as instructed before the test.
Why colonoscopy is done
A colonoscopy may be recommended when bowel symptoms continue, bleeding occurs, or screening is needed.
- Blood in stool or rectal bleeding
- Chronic diarrhea or constipation
- Unexplained anemia or weight loss
- Colon polyps or family history of colon cancer
Diet and bowel preparation
A clean colon is essential for a useful report. Follow the diet and bowel preparation schedule exactly as advised.
- Avoid restricted foods as instructed before the test.
- Take bowel prep medicine at the correct time.
- Drink permitted clear fluids if advised.
- Inform the doctor if vomiting prevents prep completion.
Medicines and attendant
Tell the hospital about diabetes medicines, insulin, BP medicines and blood thinners. An adult attendant is usually advised when sedation is planned.
Recovery
Mild gas or cramps can happen after colonoscopy. If sedation is used, avoid driving for the rest of the day. Biopsy or polyp removal may require additional instructions.