Search the Health Library
Get the facts on diseases, conditions, tests and procedures.
I Want To...
I Want To...
Find Research Faculty
Enter the last name, specialty or keyword for your search below.
School of Medicine
EGD is an endoscopic procedure that allows your doctor to examine your esophagus, stomach and duodenum (part of your small intestine). EGD is an outpatient procedure, meaning you can go home that same day. It takes approximately 30 to 60 minutes to perform.
EGD: Why It’s Performed
EGD is used to evaluate a number of digestive disorders. It is a popular diagnostic option because patients generally tolerate it well and it causes minimal discomfort.
Your gastroenterologist may use EGD to evaluate:
- Abdominal pain
- Persistent nausea or vomiting
- Swallowing difficulties
- Upper gastrointestinal bleeding
- Chest pain (without evidence of heart disease)
- Bloody stool
Your doctor may also order EGD for:
- Periodic screening, if your doctor thinks you are at risk for developing a digestive disorder
- Surveillance to monitor the progression of an existing condition
- Removing foreign substances
- Controlling bleeding
EGD: What to Expect
You will need to follow specific preparation instructions prior to the EGD. Learn more about preparing for an endoscopic procedure.
When you arrive for the EGD, you will register and give a medical history. We will insert an intravenous line in order to administer fluids and sedatives.
During the EGD, your doctor will:
- Anesthetize your throat with a topical anesthetic to suppress the gag reflex.
- Administer pain medication and a sedative.
- Place a plastic mouthpiece between your teeth to prevent damage to the endoscope.
- Insert the endoscope; as you swallow, the swallowing motion guides the endoscope through your esophagus, stomach and duodenum.
- Examine the mucosa (lining) of your gastrointestinal tract as the endoscope moves through your tract. The images are displayed on a monitor.
- Pass instruments through the endoscope if necessary. For example, he or she may want to use biopsy forceps to obtain samples of tissue or digestive fluid. The samples are sent to a laboratory for analysis.
Room set-up and patient positioning for endoscopy
Once you recover from the medication, your physician will discuss the results with you. You may go home that same day, but you will need to rest. You may experience belching and flatulence as well as some throat discomfort for the next 24 hours.