What is this Spot on my back?

have had it for 6+ years, its super hard, shiny and raised...Doesn t itch or hurt unless messed with. Doesn t look like a black head based on Google images, and like nothing else I have seen either with research. If its non harmful then cool, but if it needs to be removed or someone knows what this is then I would... show more have had it for 6+ years, its super hard, shiny and raised...Doesn t itch or hurt unless messed with. Doesn t look like a black head based on Google images, and like nothing else I have seen either with research. If its non harmful then cool, but if it needs to be removed or someone knows what this is then I would appreciate the assistance!
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