Should not consume any food for 6 – 8 hours before the procedure.
Should not consume any fluid 2 – 3 hours before the procedure.
Might need to stop taking medications for a period of time before the procedure.
Might want to arrange for someone to drive you home after the procedure and to stay with you for at least 24 hours.
Once your gastroscopy is scheduled, your doctor will provide you with more detailed advice. Learn more about preparing your bowels before a gastroscopy.
What can you expect in a gastroscopy?
The procedure is performed under local anaesthesia.
A gastroscopy is a short procedure that takes about 10 minutes.
Before the procedure
Will administer a local anaesthetic spray to numb your throat
Will place a small plastic mouth guard in your mouth to hold it open and protect your teeth
May give you a sedative to help you relax
During the procedure
You will be asked to lie down sideways facing your left. As your doctor inserts the endoscope into your throat, you need to swallow to help it move down. This may feel uncomfortable initially, and cause you to feel sick or gag.
As the endoscope moves down the oesophagus, your doctor may:
Observe the upper digestive tract for any abnormalities through images that are transmitted from the endoscope to the monitor.
Blow air gently into the stomach to allow for a better view to detect any unusual redness, holes, lumps, blockages or other abnormalities.
Remove a biopsy (tissue sample) if your doctor detects any abnormalities. This procedure is painless and you will not feel it.
Care and recovery after a gastroscopy
Once the examination is completed, your doctor will gently pull the endoscope out through your mouth. You will rest for about 1 hour at the recovery area until the sedative begins to wear off.
Frequently asked questions
A: An endoscopy is the visual examination of body cavities using long, thin and flexible telescopes that are attached to a video monitor.
A gastroscopy is a type of endoscopy. It involves the insertion of a video scope through the mouth to examine the upper digestive tract, which includes the:
Oesophagus (food pipe)
Duodenum (first portion of the small intestine)
A: No, you should not feel any pain or discomfort as your doctor will give you anaesthesia and sedation before the procedure. However, you may experience some discomfort if you choose not to receive any sedation.
A: A gastroscopy looks for abnormal changes in your digestive tract such as gastritis, ulcers, polyps or tumours.
If an abnormal finding is detected, a biopsy is usually performed. In addition, a gastroscopy can be used to:
Remove foreign items you may have accidentally swallowed, such as fish bones
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.
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.