Cracked heels are a very common problem and can range in severity from a cosmetic issue to a painful problem.
Some of the causes of cracked heels are dry air, lack of moisture, improper foot care, an unhealthy diet, aging, prolonged standing on hard floors and wearing the wrong types of shoes.
Corns and calluses
Corns and calluses are hard, thickened areas of skin that form as a consequence of rubbing, friction or pressure on the skin. Corns and calluses form on the feet and can make walking painful. The common callus is usually caused from excessive pressure and force through the feet.