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Alternative namesPlane juvenile warts; Periungual warts; Subungual warts; Plantar warts; Verruca; Verrucae planae juveniles; Filiform warts; Verruca vulgaris
Warts are small, usually painless growths on the skin caused by a virus. They are generally harmless. However, warts can be disfiguring and embarrassing, and occasionally they itch or hurt (particularly on the feet).
The different types of warts include:
Causes, incidence, and risk factors
The typical wart is a raised round or oval growth on the skin with a rough surface. Compared with the surrounding normal skin, warts may appear light, dark, or black (rare). Most adults are familiar with the look of a typical wart and have little trouble recognizing them. Unusual warts with smooth surfaces or flat warts in children may be more difficult for parents to recognize.
Common warts tend to cause no discomfort unless they are in areas of repeated friction or pressure. Plantar warts, for example, can become extremely painful. Large numbers of plantar warts on the foot may cause difficulty running and even walking.
Warts around and under your nails are much more difficult to cure than warts elsewhere.
Some warts will disappear without treatment, although it can sometimes take a couple years. Treated or not, warts that go away often reappear. Genital warts are quite contagious, while common, flat, and plantar warts are much less likely to spread from person to person. All warts can spread from one part of your own body to another.
Because people generally consider warts unsightly and there is often a social stigma, treatment is often sought.
Signs and testsWarts can generally be diagnosed simply by their location and appearance. Your doctor may want to cut into a wart (called a biopsy) to confirm that it is not a corn, callus, or other similar-appearing growth.
Over-the-counter medications can remove warts. These are applied to the wart every day for several weeks. DO NOT use these medications on your face or genitals. It helps to file the wart down when damp (for example, after a bath or shower) before applying these medications.
Special cushions are available at drugstores for plantar warts. These pads help relieve any pressure and pain from the warts.
Stronger (prescription) medications may be required for removal of persistent warts. Surgical removal or removal by freezing ( cryotherapy ), burning ( electrocautery ), or laser treatment may be needed.
Immunotherapy, done by injecting a substance that causes an allergic reaction, may also be considered by your doctor.
DO NOT attempt to remove a wart yourself by burning, cutting, tearing, picking, or any other method.
Interestingly, placing duct tape over a wart may help it disappear. A small study had people wear duct tape for six straight days, remove it, wet and scrape the wart down using a file, and then reapply the tape the next morning. This was done until the wart disappeared, but no longer than two months. The people wearing the duct tape had as much luck getting rid of their warts as those who had their warts frozen off by a doctor. This method might be worth a try if you have a painless, yet unsightly wart.
Expectations (prognosis)Warts are generally harmless growths that often go away on their own within two years. They can be contagious, but transmission from person to person is uncommon. Warts may be unsightly or cause discomfort, especially on the feet.
Calling your health care provider
Call for an appointment with your doctor if:
Update Date: 8/7/2003Jacqueline A. Hart, M.D., Senior Medical Editor, A.D.A.M., Inc. Previously reviewed by Glen H. Crawford, M.D., Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network (1/11/2003).
Last updated: Tue, 06 Jan 2009 00:20:03 GMT