Corns and calluses are hardened layers of skin that develop on high pressure or irritated areas of skin. Most frequently found on the feet and toes as well as on the hands and fingers, these develop when your skin tries to protect itself from friction or pressure. They are not contagious but can cause discomfort or become painful.
Corns typically have a centre that is usually hard, though soft corns can also occur. The primary difference between the two is their location and level of discomfort. Calluses generally occur on weight bearing areas such as the soles of the feet, the palms of the hands, or on the knees, while corns occur more often in non-weight bearing parts of the skin such as the tops and sides of your toes. While it is rare for calluses to cause pain, corns can be painful when pressed. If your corns or calluses hurt or are inflamed, you should consult a healthcare professional for recommendations on possible modes of treatment.