A callus, or tyloma, on the foot is caused from repeated pressure and friction, leading to the build up of thickened skin. The callus, which be may hard, dry or cracked, acts to protect the area underneath it. A corn is similar to a callus but is smaller and appears on toes rather than on the sole of the foot. Calluses and corns are caused by repeated pressure or friction on an area of skin. The pressure causes the skin to die and form a hard, protective surface. A soft corn is formed in the same way, except that when sweat is trapped where the corn develops, the hard core softens. This typically occurs between toes. Calluses and corns are not caused by a virus and are not contagious. Calluses and corns on the feet are often caused by pressure from footwear. Walking barefoot also causes calluses. Calluses and corns often form on bunions, hammer, claw, or mallet toes, or on the bumps caused by rheumatoid arthritis. Calluses and corns on the feet may also be caused by repeated pressure due to sports (such as a callus on the bottom of a runner's foot), an odd way of walking (abnormal gait), or a bone structure, such as flat feet or bone spurs (small, bony growths that form along joints).
Diagnosis - A callus or corn is typically diagnosed upon examination.
Treatment -Your podiatrist can recommend simple over-the-counter treatments such as pads or pumice to decrease the calluses or corn. In severe cases calluses may require regular shaving to keep them from becoming too large.
Without Treatment - While treatment for calluses and corns is not always necessary, it may provide you with more comfort. Larger calluses can cause significant pain. In some patients, especially when they become cracked, calluses can lead to wounds that can lead to serious problems, especially in people with diabetes.