Human papillomaviruses can live on healthy skin
without causing infection. But when a human papillomavirus enters the body
through small breaks in the skin, it can infect the skin cells beneath the
surface, causing a
wart to grow.
A wart can take many months to grow before
it becomes visible.
newer ones, are easily spread. They can spread to other parts of the body or to
warts can be pushed beneath the skin's surface by pressure from standing and
walking. A thickening of the skin slowly forms over most of the wart and looks
and feels like a callus.