Statistics about warts (verruca) from the National Verruca Foundation (NVF). Detailing non-genital human papillomavirus (HPV). www.WartSmart.org

1. Wart Statistics
(non-genital)
Presented by
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2. Wart Cause
O Warts are caused by human
papillomavirus (HPV)
O There are over 100 strains of HPV
O Several strains are responsible for various
non-genital warts
O HPV may be transmitted via objects as
well as humans
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3. Wart Prevalence & Epidemiology
O Children ages 9-16 are at the highest risk
of getting warts.1
O Peak age is 14.5 for boys and 13 for girls.2
O About 10% of children and adolescents
have warts at any one time.1
O As many as 22% of children will contract
warts during childhood.3
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4. Wart Types
O 70% of wart occurrences are common
warts (verruca vulgaris). They mostly
appear on the hands.4
O Plantar warts (foot warts) are the second
most common, affecting 4.5% of the
population. These can be very painful
since they mainly appear on the bottoms
of the feet.3
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5. References
1. Bellew SG, et al. Childhood warts: an
update. Cutis. 2004;73:379-384.
2. Kuykendall-Ivy TD, et al. Evidence-based
review of management of nongenital
cutaneous warts. Cutis. 2003;71:213-222.)
3. Silverberg NB. Human papillomavirus
infections in children. Curr Opin Pediatr.
2004;16:402-409.
4. Rivera A, et al. Therapy of cutaneous human
papillomavirus infections. Dermatol Ther.
2004;17:441-448.
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