Canker Sores
Alternate Names : Aphthous Ulcer, Ulcer - Aphthous
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Canker Sores Symptoms & Signs
- A burning or tingling sensation before other symptoms develop (warning symptom)
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Skin lesion on mucous membranes of the mouth
- Begins as a red spot or bump
- Then develops into an open ulcer
- Usually small, 1-2 mm to 1 cm
- Occasionally larger than 1 cm
- Single or clusters, often appears in groups (crops)
- Painful
- Center appears white or yellow with fibrous texture
- Halo border is bright red (a red halo may not always be present)
- May have gray membrane just prior to healing
Less common symptoms, which may appear at the time of the canker but may or may not be related, include:
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