Every day, the average person spends several hours on their feet and takes several thousand steps. Actually, most foot problems can be blamed not on walking but on your walking shoes. Corns, for example, are calluses that form on the toes because the bones push up against the shoe and put pressure on the skin. The surface layer of the skin thickens and builds up, irritating the tissues underneath. Hard corns are usually located on the top of the toe or on the side of the small toe.
Soft corns resemble open sores and develop between the toes as they rub against each other.
Causes of corns Shoes that don't fit properly. If shoes are too tight, they squeeze the foot, increasing pressure. If they are too loose, the foot may slide and rub against the shoe, creating friction. Toe deformities, such as hammer toe or claw toe. High heeled shoes because they increase the pressure on the forefoot.