Colonoscopy
A colonoscopy uses a flexible camera to examine the colon and remove polyps — the gold-standard screening for colorectal cancer.
Adults 45+ for average-risk screening, or earlier with family history / symptoms like rectal bleeding.
30–60 minute outpatient procedure under sedation. Bowel-prep the day before is the least pleasant part.
Full recovery in a few hours. No driving until the next day due to sedation.
Fully covered as preventive screening by ACA-compliant insurance and Medicare when performed at appropriate intervals.
Questions to ask your doctor
- How many colonoscopies do you perform annually?
- What is your adenoma detection rate (ADR)?
- Which sedation option is available?
- What is the prep protocol?
Frequently asked
Every 10 years starting at age 45 for average risk; sooner if polyps are found or family history warrants.
Modern split-dose prep is more tolerable. Most patients call it the hardest part of the day — but manageable.
Stool-DNA tests (Cologuard) and FIT tests exist but are less sensitive and require follow-up colonoscopy if positive.
Find a board-certified gastroenterology provider in your area.
General information only — not medical advice. Always consult a qualified clinician for your specific situation.