What is a gastroscopy?


Gastroscopy, also known as upper gastrointestinal endoscopy, is a safe and minimally invasive examination to view the lining of the oesophagus (food pipe), stomach and small intestine.

It is used to diagnose stomach problems and perform biopsies (tissue samples for further study).

How it works

In a gastroscopy, your doctor will insert a long and flexible tube called a gastroscope through your mouth and carefully push it down the oesophagus to the stomach and the small intestine.

Why do you need a gastroscopy?

Your doctor may recommend a gastroscopy for the following reasons:

Diagnostic examination

If you have the following symptoms, your doctor may recommend a gastroscopy:

  • Nausea
  • Vomiting
  • Heartburn
  • Difficulty swallowing
  • Upper abdominal pain that does not go away
  • Unexplained weight loss
  • Bloating

Routine screening

If you have a history of ulcers or polyps, a gastroscopy allows your doctor to:


Your doctor may use a gastroscopy to:

  • Stop any bleeding from ulcers
  • Remove a foreign body you might have swallowed by accident, such as a fishbone
  • Remove polyps (non-cancerous growths)
  • Remove small stomach tumours

What are the risks and complications of a gastroscopy?

There are small risks of possible complications associated with gastroscopy. These include:

  • Reaction to the sedation
  • Burning sensation at the site of injection
  • Bleeding due to accidental damage to a blood vessel
  • Breathing difficulties
  • Irregular heartbeat

Why choose Gleneagles Hospital?

For more than 60 years in Singapore, Gleneagles Hospital has provided trusted healthcare with the needs of our patients in mind. We combine our expertise with technology to provide you with the care and treatment you need to relieve your symptoms and regain your gut health.

Our newly furbished Endoscopy Centre at Gleneagles Hospital is designed with larger spaces, improved privacy and more facilities to provide a comfortable experience during your gastroscopic screening.

Estimated cost

Private healthcare can be affordable. Use our Hospital Bill Estimator to determine the estimated cost of this procedure. If you have hospital insurance, find out how you can use your insurance.

Our gastroenterologists and general surgeons

Gleneagles Hospital has a team of gastro specialists and general surgeons to treat simple to complex conditions of the digestive system. We are committed to placing your needs first and will advise if you need gastroscopy to diagnose and treat your condition.

Please check with your insurance provider for more information, and for their most up-to-date list of panel doctors.

^Specialists may qualify to be on the Extended Panel (EP). You may enjoy selected panel benefits depending on your policy and riders.
This page has been reviewed by our medical content reviewers.

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