Warts are caused by a viral infection in the top layer of skin, often from a strain of HPV (human papillomavirus).
Warts can be caused by various strains of HPV. Some of the common types of warts include common warts, flat warts, plantar warts, periungal warts, filiform warts and genital warts. Sometimes the warts may disappear on their own, but most often warts may need treatment.
Warts are a result of an infection in the top layer of skin caused by viruses, as aforementioned in the HPV family. When the skin is invaded by the virus, the cells can rapidly grow, creating the wart. You can get warts from skin to skin contact with people that have them, especially if you have any breaks in your skin. People with strong immune systems may not necessarily get warts when they come into contact with the virus, but they can easily spread the virus. Those with weakened immune systems are at most risk for developing warts.
Topical therapies such as retinoids, salicylic acid and imiquimod can be used to treat warts. Liquid nitrogen, light and laser therapy, and surgery can all be used to eradicate warts.
