What Is a Mouth Ulcer?
9. Can Mouth Ulcers Come Back?
Many mouth ulcers, especially those that develop due to mouth injury, are not likely to keep coming back after healing. However, some people do experience recurrent ulcers. Professional medical intervention may be useful in these situations to discover why the ulcers are continuing to pop up.
While canker sores are not contagious, if the underlying issue is not addressed, they can return. The most common reasons a person may have a recurrent mouth ulcer is due to a food allergy, inflammatory bowel disease, a nutritional deficiency, a new medication, an anxiety disorder, or stress.
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