Mouth Ulcers

A mouth ulcer is also known as an Aphthous ulcer or a Canker sore. Aphthous ulcers are very common and can occur at any age. They are easy to recognise due to their painful nature and distinctive look. They are white spots surrounded by a red area. You can find them on the inside of the mouth, usually on the cheek, the gums, under the tongue or the inside of the lip. They are usually round and no bigger than a few millimetres in diameter but in some cases can be bigger than that. It may take up to two weeks for them to heal. The exact cause of the ulcers is not known yet but has been related to:

  • Stress.
  • Vitamin or iron deficiency.
  • Certain additives in food.
  • Autoimmune response.
  • Bacteria infection.
  • Virus infection.
  • Due to trauma
  • Weak immune system.
  • Certain systemic diseases like HIV, Crohn’s disease.
  • Allergies.

Aphthous ulcers are not contagious.