Warts are benign (non-cancerous) skin growths that appear when a virus infects the top layer of the skin. Viruses that cause warts are called human papillomavirus (HPV). You are more likely to get one of these viruses if you cut or damage your skin in some way.
Wart viruses are contagious. Warts can spread by contact with the wart or something that touched the wart.
Warts are often skin-colored and feel rough, but they can be dark (brown or gray-black), flat, and smooth.
Signs and symptoms of warts
There are a few different types of warts. The type is generally determined by where it grows on the body and what it looks like. Common warts include:
- Foot warts (also called plantar warts)
- Flat warts
- Filiform warts
Warts often go away without treatment. This is especially true when children get warts. In adults, warts may not disappear as easily or as quickly as they do in children. Although most warts are harmless, dermatologists do treat them.
You should see a dermatologist if you cannot get rid of the warts, the warts hurt, or you have many warts. Dermatologists have many treatments for warts. The treatment used depends on the patient’s age and health as well as the type of wart.