Callus

Dermatologically, a callus is an especially toughened area of skin, which has become relatively thick and hard (or callous) as a response to repeated contact or pressure. Since repeated contact is required, calluses are most often found on hands or feet. Calluses are generally not harmful, but may sometimes lead to other problems, such as infection. Shoes that fit tightly can often form calluses on the feet.

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Corns (also called clavi) are specially-shaped calluses that usually occur on thin or glabrous (hairless and smooth) skin surfaces, especially on the top of toes or fingers. They can sometimes occur on the thicker palmar or plantar skin surfaces. Corns form when the pressure point against the skin traces an elliptical or semi-elliptical path. This forms a swirl of tissue, the center of which is at the point of pressure, gradually widening. If there is constant stimulation of the tissues producing the corns, even after the corn is removed or the pressure surgically removed, the skin may continue to grow as a corn.

Skin: :For alternate meanigns see skin (disambiguation)...

Infection: :"Infection" is also the title of an episode of the television series Babylon 5...

Shoes: REDIRECT Shoe...