Endoscopy
Understanding Endoscopy
At Exeter Hospital, endoscopy (sometimes called upper GI endoscopy) is a safe, minimally invasive procedure used to examine the upper digestive system — including the esophagus, stomach, and duodenum (the first part of the small intestine).
This test helps doctors diagnose conditions such as ulcers, inflammation, abnormal growths, and precancerous changes. It can also explain symptoms like abdominal pain, reflux, or difficulty swallowing.
Conditions We Treat
Endoscopy allows our doctors to see inside the upper digestive tract and diagnose issues that may be causing symptoms. In some cases, problems can even be treated during the same procedure. Common conditions endoscopy can help identify include:
- Abnormal growths
- Bowel obstruction
- Hiatal hernia
- Inflammation
- Precancerous conditions
- Ulcers
Endoscopy: What You Need To Know
Wondering what to expect before, during, and after an endoscopy? The information below explains when it’s recommended, how to prepare, what happens during the test, and what recovery is like.
Doctors may recommend an endoscopy if you are experiencing:
- Abdominal pain
- Nausea or vomiting
- Difficulty swallowing
- Persistent reflux or heartburn
- Unexplained weight loss
- Anemia
- Bleeding in the upper digestive tract
Endoscopy may also be used to remove stuck objects (such as food), stop bleeding, or take a biopsy (a small tissue sample) for testing.
Proper preparation helps your doctor get the clearest view of your digestive tract. To prepare for your procedure:
- Do not eat, drink, smoke, or chew gum for 4–8 hours before your exam.
- Tell your doctor about all medical conditions and medications.
- Arrange for a ride home, since sedation means you won’t be able to drive for 12–24 hours.
An endoscopy is a safe, routine test performed by a trained doctor and care team. Here’s what typically happens:
- You'll receive a throat-numbing anesthetic and an IV sedative to help you relax.
- While you rest, the doctor gently guides a thin, flexible tube with a light and camera (endoscope) through your mouth and into your esophagus, stomach, and duodenum.
- A video monitor shows detailed images of your digestive tract for careful examination.
- Special tools may be used to stop bleeding, remove growths, or take small tissue samples (biopsies) for further testing.
The test usually takes less than 30 minutes.
Afterward, you’ll spend about an hour in recovery while the sedative wears off. You may feel bloated, tired, or have a mild sore throat for a day or two. Most patients can return to normal eating, drinking, and medications right away unless their doctor advises otherwise.
Some results are available the same day. Biopsy results are usually ready within a few days.
