Since they are caused by a virus they are usually located on areas of the sole of the foot that contact the floor, and they are often caught in changing rooms of leisure centres. There is often a number of visible black spots in the centre of verrucae. This is blood that is collecting in the verrucae which is fighting the viral infection. They can be painful because of the pressure the growing areas of hard skin puts of the nerves under the skin. This can be aggravated by the fact that the body weight will often be placed on the area of the foot bearing the verrucae.
Treatment is the same as for corns and is very simple.
Corns Corns are almost identical to verrucas except that there is no viral involvement. Corns are caused by friction between the foot and either other areas of the foot or footwear. Treatment is the same as for verrucas and is very simple. Calluses These are areas of hardened skin on areas of the feet that would rub on footwear. The cause is similar to corns however the outcome is a larger area of hard skin without the obvious centre which corns possess.