Colonoscopy FAQs: What I Want Patients to Know

As a gastroenterologist, I hear the same concerns about colonoscopies every day. Most people aren’t worried about the procedure itself—they’re worried about the unknown. My goal is always to take the fear out of the process and help patients understand why this test matters so much.

Below are the most common questions I’m asked—and the honest answers.

Do I really need a colonoscopy if I feel fine?

Yes. Colon cancer often develops without symptoms. A colonoscopy allows us to find and remove precancerous polyps before they turn into cancer. It’s one of the few screenings that can actually prevent disease.

Is the prep really that bad?

The prep isn’t anyone’s favorite part, but it’s manageable—and it’s temporary. A clean colon helps us see clearly and do a thorough exam. There are different prep options, and we’ll help you choose one that works best for you. My biggest tip: follow the instructions closely and stay well hydrated.

Will the colonoscopy hurt?

No. You’ll be given medication to keep you comfortable, and most patients sleep through the procedure. Many tell me afterward that it was much easier than they expected.

How long does the procedure take?

The procedure itself usually takes about 20–30 minutes. Plan to be at the facility for a few hours total to allow time for preparation and recovery.

What happens if you find something?

If we find a polyp, we can often remove it during the procedure. If anything requires follow up, we’ll talk through the next steps together. Finding something early is always better than finding it late.

Will I need time off work afterward?

You’ll need someone to drive you home the day of your colonoscopy, and most people take the rest of the day to rest. By the next day, many patients feel back to normal.

I’m embarrassed—should I be?

Not at all. This is our job, and we do it every day. Your comfort and dignity are important to us, and we want you to feel at ease asking questions or sharing concerns.

What’s the biggest thing you want patients to know?

A colonoscopy isn’t something to fear—it’s something that protects your future. It’s a small step that can make a life-saving difference.

If you’re due for a colonoscopy or have questions, start the conversation with your provider. Your health is worth it.