Warts are non-cancerous growths on the top layer of the skin.
Warts are caused by a virus interacting with the skin. The human papillomavirus (HPV) is the virus that causes warts. You are more likely to get one of these viruses if your skin is cut or damaged in some way.
Wart viruses are contagious and spread easily, especially when the patient scratches them. Warts can spread either through direct contact with the wart or through something that touched the wart. Warts spread in children very quickly because of a child’s difficulty in resisting the urge to scratch.
Warts are not dangerous, and most will go away on their own without any treatment. However, if the patient finds them unsightly, treatment can be done with topical medication, freezing or laser treatment.