A callus is an area of hard, thickened skin on the foot that is formed in response to pressure or friction.
Don’t try to treat corns and calluses yourself. The body protects skin tissues from pressure or friction damage by producing an area of hard skin so unless the cause of the pressure or friction is found and removed, calluses and corns will continue to form.
Common sites of corns and calluses are the ball of the foot, under the big toe, tips of toes and any bony prominence. Sometimes, the pressure of the corn or callus may produce inflammation, which can result in pain, swelling and redness. The symptoms can include:
Thickened patch of hard skin on the foot
Hard, small bump of skin that may have a central core
White and rubbery bumps of skin
Pain when pressure or friction is applied to the area