Definition of Corns

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Corns: Small calloused areas of skin caused by local pressure irritating tissue over a bony prominence. Corns most commonly occur over a toe where they form what is referred to as a hard corn. Between the toes, pressure can form a soft corn of macerated skin which often yellows.

The word corn comes from the Latin cornu meaning horn or hoof. A corn on the toe is also called a clavus.