Like other common types of wart, flat warts are a sympton of human papillomavirus (HPV), a virus that enters the skin through mucas membrains or small cuts and abrasions.
Flat warts are unique for there size, texture and number. Unlike other types of external warts which are generally easily noticable, flat warts are usually no larger than the head of a pin and easily blend in with the skin due to their flesh colored, light brown or light yellow appearance. But while it might be nearly impossible to notice a single flat wart, they almost never show up alone. Indeed, flat warts usually show up in large clusters that can number anywhere from 20 to over 200 at a time.
As their name suggests, flat warts are indeed flat. They are also smooth to the touch which differentiates them from most other types of wart which are generally both raised and rough or bumpy to the touch.
Check out answers to the most frequently asked questions about flat warts.
