EGD

What is a EGD?

An EGD — short for esophagogastroduodenoscopy (yes, quite possibly the longest word you’ll ever see!) — is a procedure that lets your doctor look inside the upper part of your digestive system. Using a thin, flexible tube with a camera and light, the doctor can see your esophagus (swallowing tube), stomach, and the first part of the small intestine (duodenum).

Think of it as a close-up inspection of the pathway your food takes after you swallow.

Why You Might Need One

Doctors may recommend an EGD to:

  • Investigate ongoing heartburn or acid reflux

  • Look into difficulty swallowing or food getting stuck

  • Find the cause of upper abdominal pain, nausea, or vomiting

  • Check for bleeding in the stomach or esophagus

  • Monitor conditions like Barrett’s esophagus

  • Take biopsies (tiny tissue samples) to test for things like celiac disease, infection, or inflammation

Preparing for the Procedure

Preparation for an EGD is simpler than a colonoscopy:

  • You’ll need to avoid food and drink for about 6–8 hours before the test (so your stomach is empty).

  • Your doctor will give you detailed instructions to follow.

What to Expect During the Procedure

You’ll be given sedation so you’re relaxed and comfortable.

  • A mouth guard may be placed to protect your teeth and the scope.

  • The doctor gently passes the scope down your throat into the esophagus, stomach, and duodenum.

  • The camera sends live video to a monitor so your doctor can see any irritation, ulcers, or other concerns.

  • Biopsies can be taken, and some problems (like bleeding or small growths) can be treated right away.

  • The procedure usually takes 15–30 minutes.

After Your EGD

You’ll rest while the sedation wears off and go home the same day.

  • A friend or family member will need to drive you.

  • Your throat may feel a little sore for a day, but most people bounce back quickly.

  • Your doctor will review the findings and let you know if any biopsies were taken.

Learn More

Below is a short animation that shows what happens during an EGD and how it helps doctors diagnose and treat digestive issues.