An endoscopy is usually safe and the risk of complications is low (less than 1 in 100).
Possible complications of an endoscopy include:
- an infection in the part of the body that the endoscope is used to examine
- perforation (piercing or tearing) of an organ
- excessive bleeding
- an allergic reaction to the anaesthetic
Contact your GP if you notice any signs of infection in the area of your body where the endoscope was inserted. Signs of infection include:
- redness
- pain
- swelling
- a discharge of fluids or pus
Infections can usually be successfully treated with antibiotics.
Perforation of an organ or excessive bleeding may require surgery to repair any damage to the tissues or organ.
Antihistamines are a type of medicine that can be used in the event of an allergic reaction.
A number of other signs could indicate a complication after having an endoscopy. These include:
- black or very dark coloured stools
- shortness of breath
- severe and persistent abdominal pain
- vomiting blood
- chest pain
- a high temperature (fever) of 38C (100.4F) or above
Contact your GP or visit the accident and emergency (A&E) department of your local hospital immediately if you notice any of these signs and symptoms.
