Warts are caused by a virus. Although they commonly appear on appendages like the hands and feet, you can get them on any skin surface, including your neck. You should turn to over-the-counter treatments as your first line of defense, according to MedlinePlus.

Molluscum contagiosum is a skin infection that creates small wart-like growths on the skin. The disease is common in young children because they are more likely to come into contact with others with this easily transmissible disease, but adults as well as people with weakened immune systems can also be at risk.

Plantar warts are benign growths that occur on the sole of the foot. They are caused by the human papilloma virus (HPV), which enters through small cracks in the skin, according to the Cleveland Clinic. HPV can be picked up by walking barefoot in public areas, such as gyms, pools and dormitory showers.

Warts are a common skin problem, and are usually caused by HPV, the human papilloma virus. Warts are not cancerous and can show up as a single raised bump or in clusters. Warts occur when the HPV virus finds its way into your body via a scratch or cut and makes cells multiply quickly.

Salicylic acid is used in a variety of products for topical treatment of skin conditions. Most often used in acne treatment, salicylic acid is also used to treat dandruff, callouses and warts. Some of these products are available by prescription but others are available over the counter in soaps, shampoos or creams.

Warts, also known as verrucas, are a common skin problem, especially on the hands and feet. Warts develop due to an infection of a strain of the human papillomavirus, or HPV. Once infected, the virus alters the growth of skin cells on your body, causing them to grow abnormally into the form of a wart.

Although some may mistake genital warts for a yeast infection or ringworm for common warts, there are at least two different mechanisms at work. Warts are the result of varieties of the human papilloma virus while ringworm and yeast infections are fungi infections.

Like almost any wart that develops on your skin, facial warts are caused by the human papillomavirus. If a wart manifests on the face, it's usually linked to a certain strain of HPV responsible for flat warts, but you may also develop common warts on this area of the body.

Warts on human skin develop as a result of infection with any one of the hundreds of varieties of the human papillomavirus. Although most warts don't cause health problems, they can cause considerable discomfort, especially when bathing, getting dressed, walking or during sexual activity.

Warts are a common skin condition caused by a type of human papillomavirus infection, or HPV. Warts can occur anywhere on the body, in different shapes and sizes. One common type of wart that occurs on the skin is a filiform wart. Filiform warts often occur on the face, including around the lips.

Warts -- small, rough growths that often affect the hands and feet -- can be difficult to treat. Viruses cause warts, so just cutting off a wart won't cure it. Removing the top layer of a wart by trimming off the dead skin can make it easier for medicine to penetrate and treat the infection.

The most typical types of warts you may find on the face are called flat warts and filiform warts. Adults who see a sudden large wart appear on the face may want to visit the dermatologist to ensure it is not actually a mole that warrants additional attention.