No idea: Tough to DX without seeing the area. Could be something as simple as an area of blood blister if he bit his gum there, or could be something that needs to be evaluated further. Have him see a dr. Best wishes.
Answered 6/13/2016
5.2k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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