Warts are a very common condition that can affect individuals of any age and any part of the body. They are non-cancerous growths that often appear as rough and raised bumps. They are caused by a type of virus known as the Human Papilloma Virus. Warts are contagious and can be spread through physical contact. Warts are not dangerous, but can cause discomfort when they become irritated. They are also cosmetically unappealing.