The outcome varies depending on the cause of the ulcer. Many mouth ulcers are harmless and heal without treatment. There are types of cancer, however, that may first appear as a mouth ulcer that does not heal.
What to expect if I have Oral ulcer  (Outlook/Prognosis)?
The outcome varies depending on the cause of the ulcer. Many mouth ulcers are harmless and heal without treatment. There are types of cancer, however, that may first appear as a mouth ulcer that does not heal.