Warts are the result of skin disorders caused by a virus of the human papillomavirus (HPV) family. They are usually characterized by small, round growth on parts of the body. Warts tend to affect the warm, moist parts or the cuts and scratches on various parts of the body. While most warts are quite harmless, some of them located on the feet or on other parts of the body, that tends to get touched all the time, can be quite painful and itchy.