1. Rapid enlargement of oral mass: If a growth in the mouth increases in size quickly, remains unchanged for a long time, and is accompanied by symptoms such as bleeding and numbness.
2. Ulcer persists for more than 2 weeks: Normally, with diet and medication, ulcers should improve within a short period of time.
3. Abnormal gums: When there is swelling around the gums, it can cause nearby teeth to become loose or fall out.
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