A gastroenterologist reveals what actually happens during a colonoscopy and says most people’s fears are based on completely outdated information

by Adrienne Erin

What if I told you that a 20-minute procedure you undergo while comfortably asleep could save your life? It sounds simple, yet many people delay this crucial screening out of fear or anxiety about the unknown. Today, we’re pulling back the curtain on the colonoscopy, a procedure surrounded by myths and apprehension.

You’ve likely heard the jokes and the whispers about the dreaded prep, but the reality of a colonoscopy is far less intimidating than you might imagine. It stands as one of the most powerful tools in modern medicine for both preventing and detecting colon cancer, a disease that is highly treatable when discovered early. With the American Cancer Society now recommending that most people begin screening at age 45, it’s more important than ever to be informed. Let’s walk through the entire process together, from start to finish, so you can approach your appointment feeling empowered and confident, not fearful. (Based on the expertise of Dr. David Purow, Northwell Health)

Key Takeaways

  • The Prep is Temporary, The Benefit is Lasting: While the preparation phase is inconvenient, it’s absolutely essential for a successful procedure and is manageable for one day.
  • You Won’t Feel a Thing: The procedure is performed under deep sedation. You will be comfortably asleep and will not feel or remember the colonoscopy itself.
  • It’s Quicker Than You Think: The actual time the doctor spends performing the scope is typically only 15 to 20 minutes.
  • Recovery is Swift: You’ll wake up shortly after the procedure is over, and the doctor will discuss the initial results with you before you go home.
  • Passing Gas is Normal: The gas used to see inside your colon needs to come out. It’s a normal and expected part of the recovery process.

1. The Infamous Prep: Getting Your Colon Squeaky Clean