A corn is a lesion that forms in the skin of the foot, and it is typically circular in shape, small in size, and thick and rough in texture.  A corn generally occurs as a result of repeated pressure on the skin; one example of this is the rubbing of a shoe against the skin.  Corns differ from calluses in that their central cores are harder in texture.

A corn is a relatively common condition with a wide variety of treatment options.  If a corn becomes overly uncomfortable or painful, consult with your podiatrist; he can determine the best method of treatment that is appropriate for you.  Corns may return if the underlying cause of its development is not treated or removed.  Avoid removing corns at home, as improper removal may cause infection.

A callus, similar to a corn, is an area of skin that has become thickened due to repeated pressure and rubbing.  The rubbing causes the skin to create a layer of protective skin, which is the formed callus.  Calluses can differ in size between people, and they can also become painful.

Multiple treatments are available for calluses.  At-home treatment and removal should be avoided, as this can potentially lead to infection.  Your podiatrist can best determine the cause of your calluses and suggest the treatment most appropriate for you.