Warts are benign (not cancerous) skin growths that appear when a virus infects the top layer of the skin. Viruses that cause warts are called human papillomavirus (HPV). You are more likely to get one of these viruses if you cut or damage your skin in some way.
Wart viruses are contagious. Warts can spread by contact with the wart or something that touched the wart. Warts can grow on any part of your body.
Warts are often skin-colored and feel rough, but they can be dark (brown or gray-black), flat, and smooth. Warts can be diagnosed simply by looking at them but in rare cases a biopsy would be performed to be certain.
Warts often go away without treatment. However, if you are unable to get rid of the wart with over-the-counter medications you should schedule an appointment to seek treatment