Based on your photos, I would say that this is likely either an incusion cyst, or a keloid scar. Did you have a piercing in the ear? Either way, it could be removed in the office under local anesthesia.
What is This on my Ear and It Keep Growing? (photo)
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Growth on ear
I'm not sure about the history of your ear, in terms of any past piercings or procedures, but the growth on your ear may be a keloid scar. This can result in some people as the result of a procedure on the ear such as piercing or surgery. I would say it's also possible the growth could be a cyst, but a history and exam would be needed to diagnose your condition. I would see a facial plastic surgeon or plastic surgeon to determine if you might be a candidate for treatment.
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