A neuroma is a noncancerous (benign) growth of nerve tissue that can develop in various parts of your body. Morton's neuroma (named after the physician who first described this mass, in 1876) occurs in a digital nerve in your foot, often between your third and fourth toes. The condition isn't a true tumor, but instead involves a thickening of the tissue around one of the digital nerves leading to your toes. It causes a sharp, burning pain in the ball of your foot. Your toes may also sting, burn or feel numb. Also called plantar neuroma or intermetatarsal neuroma, Morton's neuroma may occur in response to irritation, injury or pressure — such as from wearing tight fitting shoes. But it may also occur for unknown reasons.
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