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balu736 [363]
3 years ago
5

What are canker sores?

World Languages
2 answers:
Veseljchak [2.6K]3 years ago
5 0
Small sores on inside of mouth, either on gums, lips, tongue
svetoff [14.1K]3 years ago
4 0
Canker sores are small shallow ulcers that appear in the mouth and can often make it painful to eat/talk. Stress or tissue injury is thought to be the cause. They typically last up to a week and occur in people 10-20.
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