Greetings - these look like plane warts / stucco keratosis - these need to be addressed - by due examination of the same by a qualified dermatologist and removal by radio frequency ablation / electro surgery. Stucco keratosis is a non infective and non-bothersome condition and may need no treatment except for cosmetic concerns. However, if plane warts, better to get them treated. hope this helps
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see a qualified dermatologist near you
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