Hi, I have had a blackish blue looking spot in one little area on my bottom gum. It's on the left side and it's hardly noticeable but it has been there for a while. It is right underneath one of my teeth. Does anyone know what this might be?
It could be an amalgam tatoo. If you have a silver filling anywhere near it, some of the filling material could've "tatooed" your gum tissue during placement. I don't know exactly how it happens, but I know that it's not uncommon.