A wart is a benign skin growth caused by the human papillomavirus (HPV) entering the epidermis. Infected keratinocytes multiply abnormally and form a rough or flat bump. Warts on the face are less common than those on the hands, but their visibility makes them more cosmetically bothersome. Generally, the lesion eventually regresses, but the duration varies from a few months to several years.
What different types of warts exist?
There are three main types.
Filiform warts: Thin and elongated, they tend to cluster around the mouth or chin.
Flat warts: Resemble small papules with a smooth surface, often slightly pigmented; they can cluster into geometric patches on the forehead or cheeks.
Common warts: Typically appear on the cheeks; they have a hemispherical shape and a rough surface.



