8 They grow outward (a type of pattern known as exophytic), and the raised round or oval surface has a rough appearance, much like that of a cauliflower. 7 They are most often found on the fingers, around the fingernails, and on the backs of the hands, although they can infect any part of the skin. 1 They seldom cause pain or discomfort, unless they arise in a part of the body where repeated environmental contact or unpleasant friction with clothing continually abrades them.
#LIQUID NAIL TAPE CVS SKIN#
Patients may recall a specific skin break that allowed penetration, such as tattooing or skin piercing.Ĭommon Warts: Common warts ( verruca vulgaris) constitute 70% of all warts. In this case, pharmacists can help identify such common wart inoculation sites as swimming pools, gyms, and communal shower stalls. They may have walked barefoot in an area where an infected person walked with bare feet, the most common means by which plantar warts are spread. 5 They may have contacted a fomite (i.e., an object that may be contaminated with infectious organisms), such as a towel that an infected person used to dry himself. 3 Infected patients may have touched a wart on another person. HPV can have a long latency period (perhaps 8 months or more), so it is usually impossible to identify the causal location or behavior. Patients may ask the pharmacist where or how they contracted the virus.
6 For this reason, the face in men and the legs in women are common attack sites. Shaving can spread an existing wart to new areas. Children should be instructed not to bite their fingernails or pick at hangnails, as both of these nervous habits can lead to skin breakage and increase the risk of warts. Biting a wart can allow the virus to implant on the tongue, mucous membrane, or lips. These particles can implant on adjacent skin surfaces and may eventually cause crops of warts in a closely circumscribed area. Patients with warts should be advised not to bite, pick, or otherwise damage them, as doing so can release viral particles. 1 Transferring a virus to oneself is known as autoinoculation. 5,6 Thus, walking barefoot is a clear epidemiologic indicator of those who will contract plantar warts.Īnother risk factor is having existing warts, which is a predictor of future warts. 5ĭamaging the skin increases the risk of warts. 1 Immunodeficiency can also increase the risk for warts. 1,5 There is also a different risk by gender, with females developing warts more often and earlier in life incidence peaks at 13 years in females, but at 14.5 years in males. Most types of warts exhibit an age-related epidemiology, occurring with greater frequency in those aged 12 to 16 years. Contrary to superstition, frogs and toads cannot carry the virus and thus cannot pass the virus on to human hosts. Other animals can carry papillomaviruses, but they are specific to that species. 2 HPV has been linked to cervical, anal, vulvar, vaginal, penile, and oral cancers. Sexually transmitted HPV types that tend to produce cancers are referred to as high-risk or carcinogenic HPVs. 4 Types 6 and 11 are commonly associated with warts in the anogenital area. 2,4 Thirty-five types are known to infect the genital tract, most commonly subtypes 16, 18, 31, 33, 45, and 59 for squamous cell carcinoma and adenocarcinoma of the cervix.
1,2 Warts on the hands and feet are not transmitted as readily as sexually related HPVs, usually being caused by HPV subtypes 1, 2, 4, 27, and 57. 1 There are more than 150 related viruses and over 200 subgroups represented in this group, but not all are responsible for causing warts. 2,3 These double-stranded viruses stimulate basal cell division to produce lesions that are generally located in the upper epithelial tissues. 1 Warts, or papillomas, are caused by a group of viruses known as human papillomaviruses (HPVs). Warts in some locations (e.g., hands, feet) can be self-treated, but warts in other areas (e.g., face, mucous membranes, genitals) require referral to a physician.Īn estimated 16% of the general populations suffers from warts. It is imperative to inquire about the location and appearance of the lesions. Patients often ask the pharmacist for advice about warts.
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