Various things: You could have staining from silver fillings, areas of pigmentation depending on your race, a benign or malignant tumor. If it's not changing most likely it's not a tumor but you need to see a qualified dentist or oral ; maxillofacial surgeon to diagnose it fully.
Answered 9/15/2014
4.5k views
Don't assume : A blood test will not tell you if a white patch is fine or not. Could be many bad things as well as benign but blood test don't tell you which. Better to have oral surgeon look at it.
Answered 3/27/2014
4.3k views
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