Recurrent Ulcers

What is a Recurrent Ulcer?

A recurrent ulcer is a sore that keeps returning to the same area, typically on the inside surface of the cheeks, lips, and gums. Often these sores are painful and may make it difficult to eat or talk. Though they look similar to canker sores, recurrent ulcers are distinct and should be treated differently.

Symptoms of Recurrent Ulcers

The symptoms of recurrent ulcers are:

  • Painful sores that keep coming back in the same area
  • Sores that can make it difficult to eat or talk
  • Sores that do not respond to treatments for canker sores
  • Swelling in the surrounding area
  • Changes or loss of sensation in the area

Causes of Recurrent Ulcers

The exact cause of recurrent ulcers is not known. However, there are certain factors that can increase the chances of developing the ulcers, such as:

  • Stress
  • Injury to the area
  • Mouth infection
  • Certain food allergies
  • Vitamin B12 deficiency


The best way to prevent recurrent ulcers is to practice good oral hygiene. Brush and floss regularly and avoid foods that may irritate the mouth. Avoiding stress and getting enough rest can also help reduce the chances of developing the ulcers.

Treatment of Recurrent Ulcers

Treatment for recurrent ulcers may include antibiotics, steroids, vitamin supplements, or an antifungal medication. Over-the-counter pain relievers can also be used to help reduce the pain and discomfort.