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关键字:corns, calluses

年  份:2008   点击量:717

文献摘要

    Corns and calluses develop in the same way, but the result is different. Calluses usually develop on the heel or bottom of the foot and rarely hurt. They often appear as a thick, rough layer of skin and can be an inch or more in diameter.
    Corns are smaller — usually about a quarter-inch to a half-inch in diameter — and have a hard center. They typically develop on the tops and sides of toes. Corns can be painful when pushed and may cause a dull ache.
    In addition to being caused by ill-fitting shoes, corns and calluses may also develop if you have some type of a foot deformity, such as a bunion or hammertoe, which causes a bone protrusion from your foot to rub on the inside of your shoe.