Calluses
A callus is a thickened and hardened part of the skin or soft tissue, that forms at points of pressure or over bony prominences. Calluses form on the bottom or side of the foot, especially in an area that has been subjected to repeated friction. Generally, calluses are not harmful, but can sometimes lead to skin infection or ulcerations.
Your podiatric physician/surgeon has been trained specifically and extensively in the diagnosis and treatment of all manners of foot conditions. This training encompasses all of the intricately related systems and structures of the foot and lower leg including neurological, circulatory, skin, and the musculoskeletal system, which includes bones, joints, ligaments, tendons, muscles, and nerves.