results vsrisks of the procedure


There are a number of reasons your doctor may suggest a gastroscopy so it’s difficult to generalise the results. The results of a gastroscopy can be used to help diagnose the cause of your symptoms, remove or biopsy any abnormalities, make sure you’re receiving the best treatment and rule out other conditions.


As with any medical procedure or investigation, there are some potential, but very low risks. The chance of complications depends on the exact type of procedure that you’re having and other factors, including your general health.

Gastroscopy has an excellent safety profile. Serious adverse events are very unlikely and as low as 1 in 10,000. The most common complications are:

  • Damage to your teeth, particularly chipping of a tooth or damage to a crown.
  • If your stomach isn’t empty, you could vomit and inhale the vomit into your lungs causing pneumonia.
  • Temporary low blood oxygen or low blood pressure occurs in up to 11% of procedures involving sedation but isn’t usually a problem.
  • Abdominal discomfort or sore throat is possible and could last for a few days. 
  • Bleeding and perforation of the gut wall are very unlikely, ranging from 1 in 200 to 1 in 10,000 procedures.
  • Other possible complications include reactions to the sedation.

Ask your surgeon about the results and risks associated with your procedure. Also ask about their own rates of patient satisfaction and the rate of complications following the procedures they’ve performed.

Choosing a specialist

How to find a gastroenterologist or surgeon to perform your procedure.


Information is provided by HCF in good faith for the convenience of members. It is not an endorsement or recommendation of any form of treatment nor is it a substitute for medical advice, and you should rely on the advice of your treating doctors in relation to all matters concerning your health. Every effort has been taken to ensure the accuracy of the information, however HCF takes no responsibility for any injury, loss, damage or other consequences of the use of this information.