What is Wart?
{{Infobox medical condition (new) | name = Wart | synonyms = Verrucae,<ref name=Loo2014/> papillomas<ref name=PubMed2016/> | field = [[Dermatology]] | symptoms = skin growth usually occurring on the hands, feet, or genitals<ref name=Loo2014/><ref name=IQ2014/> | complications = | onset = | duration = Months to years<ref name=Loo2014/> | causes = [[Human papillomavirus]]<ref name=Loo2014/> | risks = Public showers and pools, [[eczema]]<ref name=IQ2014/> | diagnosis = | differential = [[Callus]], [[seborrheic keratosis]], [[squamous cell carcinoma]]<ref name=Bo2012/> | prevention = Avoiding skin contact with infected individual, not walking [[barefoot]] in public areas, having [[safe sex]] or [[sexual abstinence]] | treatment = [[Salicylic acid]], [[cryotherapy]],<ref name=Loo2014/> surgical removal | frequency = Very common<ref name=PubMed2016/> | deaths = }} '''Warts''' are growths on the [[skin]]. Very often they resemble solid [[blister]]s. Usually, applying pressure to a wart causes [[pain]]. Warts are caused by [[virus]]es in the [[Human papillomavirus|HPV]] family. As there are many types of viruses in the HPV family, there are also many types of wart. In most cases, warts are not dangerous, but may cause a lot of pain. [[File:Dornwarzen.jpg|thumb|right|Warts on the big toe]] [[File:Verruca vulgaris - very low mag.jpg|thumb|A common wart under the [[microscope]]]] The virus infects skin [[cell]]s. If these infected skin cells move to other areas, new warts can grow there. With some warts, infected skin that has touched surfaces that other people touch can spread warts, so it may be better to wear [[Sock|socks]] or [[crocs]]. Warts contain [[tissue]] that [[Bleeding|bleeds]] easily. A bleeding of this tissue allows the wart to spread to other places. In general, coming in contact with infected tissue spreads the infection. There are different ways of getting rid of a wart: * The [[immune system]]