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Skin layers
Skin layers
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Corns and calluses

Definition:
Corns and calluses are thickened layers of skin caused by repeated pressure or friction.

Alternative Names:

Calluses and corns



Causes, incidence, and risk factors:

A corn is a small area of thickened skin that occurs on the top or side of a toe. It is usually the result of friction or pressure from shoes that do not fit properly. A callus may develop on the palms of the hands or soles of the feet in areas where pressure or friction occur.

The thickening of the skin is a protective reaction designed to provide protection. For example, farmers and rowers get callused hands that prevent them from getting painful blisters during their activities.

People with bunions often develop a callus over the bunion because that part of the toe has become very prominent and rubs against the shoe.

Neither corns nor calluses are serious conditions.



Review Date: 1/15/2003
Reviewed By: Andrew L. Chen, M.D., M.S., Department of Orthopaedic Surgery, Hospital for Joint Diseases, New York, NY. Review provided by VeriMed Healthcare Network.

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