Doctronic logo spinning
Skipping wait room
AI Doctor ready
Starting secure consult

Colonoscopy vs. Sigmoidoscopy: Which Is Right for You?

Published: Dec 30, 2023

If you've noticed blood when you go to the bathroom, your doctor might suggest a test. But which one? Let's break down the differences between colonoscopy and sigmoidoscopy.
Contents

Colonoscopy: The Full Picture

A colonoscopy examines the entire colon and is the gold standard for detecting colon issues like cancer and polyps. It requires a full bowel prep and is usually done under sedation. This procedure is recommended for those over 50 or when there's a significant risk of colorectal cancer.

Sigmoidoscopy: A Simpler Option

Sigmoidoscopy looks at the lower part of the colon and can be done without sedation, making it more accessible. It is often the first choice for younger patients or those with lower risk factors. While less comprehensive than a colonoscopy, it is less invasive and can be a good starting point.
A colonoscopy examines the entire colon for issues such as cancer and polyps, typically performed under sedation. A sigmoidoscopy focuses on the lower colon and is less invasive, often performed without sedation.

Choosing the Right Test

The choice between these tests depends on age, symptoms, and risk factors. For many under 50, a sigmoidoscopy might suffice unless symptoms or family history suggest a need for a full colonoscopy. Discussing your options with your doctor can help determine the best approach for you.

Frequently Asked Questions

Colonoscopy examines the entire colon, while sigmoidoscopy focuses on the lower part.

Colonoscopy typically requires sedation, but sigmoidoscopy often does not.

Colonoscopy is more comprehensive but sigmoidoscopy can be effective for lower risk patients.

Both tests require bowel preparation, but colonoscopy requires more extensive prep.

Consider Your Options

Choosing the right test involves understanding your risks and discussing them with a healthcare provider.
Need help deciding? Ask Doctronic to guide you through your testing options.

Related Articles

References

  1. Winawer S, Fletcher R, Rex D, et al. Gastroenterology 2003; 124:544.
  2. Wolf AMD, Fontham ETH, Church TR, et al. CA Cancer J Clin 2018; 68:250.

This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.

AI Doctor Visit Required

Appointments available 24/7

😀 😀 😀
sthetoscope

Top licensed doctors

Available in all 50 states

dossier

Full service care

Prescriptions, referrals & treatment

check

No insurance needed

All notes available in Doctronic

15-min consultation. No hidden costs.

AI Doctor Visit Required
Close icon

Please Chat With Our AI Doctor First

Our AI doctor assessment helps our human doctors prepare for your video visit and provide better care

Contact us

You can also email us at help@doctronic.ai

We aim to reply within 5-7 days

How likely are you to recommend Doctronic to friends or family?
Not likely at all Extremely likely