What is a gastroscopy?
A gastroscopy is a procedure that allows your specialist to examine the lining of your upper digestive tract — the oesophagus (food pipe), stomach and duodenum (the first part of the small bowel) — using a thin, flexible tube with a camera on the end, called a gastroscope. It is passed gently through the mouth while you are sedated.
During the procedure your specialist can take small tissue samples (biopsies) and treat certain conditions. It is a safe, common day procedure that gives a clear picture of what's happening in the upper gut.
Why it might be recommended
Your GP or specialist may recommend a gastroscopy to investigate:
- Reflux or persistent heartburn that isn't settling with treatment
- Difficulty or pain when swallowing
- Upper abdominal pain, nausea or indigestion
- Unexplained anaemia or iron deficiency
- Suspected ulcers in the stomach or duodenum
- A biopsy to diagnose or monitor coeliac disease
- Surveillance of Barrett's oesophagus
A referral is required
You'll need a current referral from your GP before booking. This lets us tailor your care and ensures you can claim your Medicare rebate.
Preparing for your gastroscopy
Preparation for a gastroscopy is straightforward — your stomach simply needs to be empty so your specialist can see the lining clearly. You'll be given detailed instructions when you book, but in general:
-
The day before
Eat and drink as normal, and note the fasting time you've been given for the morning of your procedure.
-
Fasting
Do not eat for about 6 hours before your appointment. You may usually have small sips of water up to a couple of hours before — follow the exact times we give you.
-
Medications
Tell us if you take blood thinners, diabetes medication or acid-reducing tablets, as some may need to be adjusted or paused. Arrange for someone to take you home afterwards.
Fasting is essential
Your stomach must be empty — do not eat for about 6 hours beforehand. If you're unsure about any food, drink or medication, download the fasting guide below and call us before your appointment.
On the day
A gastroscopy is a day procedure performed at one of our partner hospitals. You'll be cared for by a specialist anaesthetist who provides sedation, so you'll sleep comfortably and remember nothing of the procedure itself, which usually takes around 15 minutes.
Afterwards you'll rest in recovery until the sedation wears off. Your specialist will discuss what they found before you leave, and a full report is sent to your GP.
After your procedure
- You may have a mild sore throat for a short time — this settles quickly
- You must not drive, sign legal documents or drink alcohol for the rest of the day
- Arrange for a responsible adult to take you home and stay with you
- If biopsies were taken, results are usually available within about a week