Corn is a common foot problem characterized by a rough patch of skin in areas subjected to friction and/or pressure (top of the toes, heel, between the toes, etc). Corns can be of two kinds: soft corns and hard corns. Soft corns are often found between the toes, while hard corns usually appear on hard, dry and flat areas of skin. Corns are characterized by a conical shape with a broad top and a pointy bottom. Corns are not dangerous, but can cause discomfort or pain, due to the irritation or inflammation caused by the pressure on the underlying skin.