page_title: Wart
section_title: Diagnosis
hierarchical_section_title: Wart / Diagnosis
caption_attribution_description: English: Very low magnification micrograph of a verruca vulgaris, a common wart. H&amp;E stain. Features: Hyperkeratosis. Acanthosis. Hypergranulosis. Long rete ridges. Large blood vessels at the dermal-epidermal junction. Related images Very low mag. Low mag. Intermed. mag. High mag.
context_page_description: Warts are typically small, rough, hard growths that are similar in color to the rest of the skin. They typically do not result in other symptoms, except when on the bottom of the feet, where they may be painful. While they usually occur on the hands and feet, they can also affect other locations. One or many warts may appear. They are not cancerous.
  Warts are caused by infection with a type of human papillomavirus. Factors that increase the risk include use of public showers, working with meat, eczema and a weak immune system. The virus is believed to enter the body through skin that has been damaged slightly. A number of types exist, including "common warts", plantar warts, "filiform warts", and genital warts. Genital warts are often sexually transmitted.
  Without treatment, most types of warts resolve in months to years. A number of treatments may speed resolution including salicylic acid applied to the skin and cryotherapy. In those who are otherwise healthy, they do not typically result in significant problems. Treatment of genital warts differs from that of other types.
  Warts are very common, with most people being infected at some point in their lives.
context_section_description: On dermatoscopic examination warts will commonly have fingerlike or knoblike extensions.
caption: Micrograph (H&E stain) of a common wart (verruca vulgaris) showing the characteristic features (hyperkeratosis, acanthosis, hypergranulosis, rete ridge elongation, and large blood vessels at the dermoepidermal junction)
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