In most cases, your doctor can diagnose a common wart with one or more of these techniques:
- Examining the wart
- Scraping off the top layer of the wart to check for signs of dark, pinpoint dots — clotted blood vessels — which are common with warts
- Removing a small section of the wart (shave biopsy) and sending it to a laboratory for analysis to rule out other types of skin growths
Laser treatment. Pulsed-dye laser treatment burns (cauterizes) tiny blood vessels. The infected tissue eventually dies, and the wart falls off.