Ulcers can also occur in your small intestine (your duodenum).  They are caused by an imbalance of digestive fluids in your stomach or intestines.

The symptoms of ulcers are not always obvious. If they do occur they may include:

  • Pain or burning in the upper part of your abdomen that may travel up to your neck
  • Indigestion
  • Heartburn
  • Feeling sick
  • Vomiting blood
  • Rectal bleeding

In more severe cases, a perforation (a hole in the wall of your stomach) can occur. You should seek medical attention if you have prolonged symptoms. In some cases your GP will refer you for further tests or scans and to a specialist consultant for treatment.