Understanding Sigmoidoscopy

Sigmoidoscopy is similar to colonoscopy but examines only the rectum and the lower part of the colon (sigmoid colon).

How does it work?

A flexible sigmoidoscope is inserted through the rectum to view the lower colon.

Why is it performed?

• Investigate rectal bleeding or pain
• Screen for colorectal cancer
• Monitor known conditions like colitis or polyps

Side Effects:

• Mild discomfort or bloating
• Rarely, minor bleeding or perforation

Frequently Asked Questions

Q1. What’s the difference between sigmoidoscopy and colonoscopy?

Ans - Sigmoidoscopy examines only the lower colon, while colonoscopy views the entire colon.

Q2. Is preparation needed?

Ans - Yes, usually an enema or mild laxative is given before the test.

Q3. Q3. Is it painful?

Ans -You may feel some discomfort or bloating, but the procedure is quick.

Q4. Can it detect colon cancer?

Ans -Yes, it can detect early signs of cancer in the lower colon.