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A foot corn or callus is a thickening or hardening of skin in response to excessive pressure or friction. According to MedicineNet, corns typically have a conical or circular shape with a hard center. Calluses have a mor... More »

To remove a callus from a big toe, soak the callus in very warm water for at least five minutes, and then use a pumice stone to gently sand the hardened skin, advises The New York Times. Pads, plasters and medications co... More »

There are a number of conditions or diseases that can cause black spots on the feet. Some require medical assistance while others are treatable at home. When in doubt, always see a doctor for advice. More »

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Corns develop on the toes due to the thickening of the skin in response to excessive friction or pressure on the area, which may result from footwear that is too tight or foot deformities such as hammertoe, according to ... More »

A corn on the foot is an area of thickened skin with a hard center, according to WebMD. Soft corns have a thinner surface than hard corns. More »

Individuals can remove a corn at home by soaking the foot in warm, soapy water before rubbing off the softened skin with a pumice stone, as recommended by Mayo Clinic. Other home remedies include applying lemon juice, on... More »

Dupuytren's contracture can be recognized by a thickening of the palm and a hardening of tissue that causes the ring and pinkie fingers to remain in a bent position, explains Mayo Clinic. It is uncommon for the thumb or ... More »