A few things: Trauma, smoking, canker sore, enlarged papillae, diabetes, anemia, oral cancer (not likely). You may have caused some kind of trauma that could even happen in your sleep or it was so subtle that you didn't notice it.
Answered 9/10/2013
4.9k views
Do not pinch.: Le the lump alone for a few days. It could be a simple gland inflamed due to trauma. If after 21 days still is there, l consult your dentist or medical doctor.
Answered 9/11/2013
4.9k views
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