Typically, warts are tiny, rough growths that resemble the rest of the skin in colour. With the exception of when they are on the bottom of the feet, where they may be uncomfortable, they normally do not cause any symptoms. They can affect other areas, however they often only affect the hands and feet. There may be only one wart or numerous. They don't have cancer.
Infection with a particular strain of the human papillomavirus results in warts (HPV). Use of public baths and swimming pools, handling of meat, eczema, and a weakened immune system are some factors that raise the risk. It is thought that the virus enters the body through slightly damaged skin. There are several varieties, including genital warts, plantar warts, "filiform warts," and "common warts." Sexual activity frequently transmits genital warts.