Warts (also known as verruca) are commonly occurring local benign growths (tumours) in the skin that are caused by Human papilloma virus (HPV). It is generally found on hands and feet but often-other locations, which can resemble a cauliflower or a solid blister. Although they are considered to be contagious, it is very common for just one family member to have them. In addition, they often affect just one part of the body (such as the hands or the feet) without spreading over time to other areas.

Warts are caused by the DNA-containing human papillomavirus (HPV). The entry site for the virus is often an area of recent injury. The incubation time-from when the virus is contracted until a wart appears-can be 1-8 months.

The most common types warts are:

• Common warts (verrucaevulgaris): These common warts typically develop on the hand, especially around the nail. Common warts are gray to flesh colored, raised from the skin surface, and covered with rough, hornlike projections.
• Plantar warts (verrucaeplantaris): Plantar warts, by definition, occur on the plantar surface, or bottom, of the foot. These warts usually grow into the skin, not outward like common warts.
• Flat warts (verrucaeplana): Flat warts are most commonly seen on the face and the back of the hands.
• Periungual warts are warts around or under the nail.
• Filiform warts typically appear as a single long stalk, often on the face.

A wart is diagnosed by its location and appearance

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