Corns and calluses are a normal and healthy mode of defense for your body. The repetitive friction between a poorly fitting shoe and your skin will cause a defensive reaction. Your skin will grow extra layers to protect the area.
Corns are caused primarily by a repetitive circular motion of friction on the skin. This accounts for the “corn shape” and location. The places corns are most likely to develop are on or near joints of fingers and toes (where a tiny section of skin may be forced to rub in a circular pattern with some degree of repetitive motion). The tops of a healthy person’s feet are soft and supple, anything sticking inward from your shoe (interior stitching, leather folds or plastics) can also cause a corn to form. Corns are also very likely to form at the tops of hammer toes where a pinpoint of ‘circular rubbing’ against the shoe will occur.
Calluses typically develop on the bottoms of your feet. You may first form blisters before a corn or callus appears. Let that blister be a warning signal that you have the wrong shoes or socks!
For the most healthy people, corns and calluses don’t have any negative affects and should be left alone. They may look unsightly, and feel rough to the touch, but they typically are not painful and won’t hinder your movement. The most frequent cause of a painful callus or corn is the wearing of poorly fitting shoes or socks. You should have some amount of callus formation on the bottoms of your feet and shaving them off, or peeling them with chemicals will not solve your problem. In fact, it will almost certainly make your problem worse! In response to the shaving of your callus, your skin may grow back thicker than before. So, the next time you go out for a pedicure, skip the callus razor.