Every year millions of people are treated for warts (verruca, verrucae, condylomata acuminata) caused by (HPV) by human papillomavirus. Approximately 1% of the sexually active population in the US is estimated to have external genital or perianal warts. The incidence of these warts is greatest in young adults aged 20-30. External genital or perianal warts are diagnosed based on your history and examination. Most lesions are asymptomatic, but on rare occassions can have inflammation, pruritus (itching), bleeding, painful sexual relations or obstructive symptoms.
There are over 100 types of HPV that can infect humans with over 40 that can infect the genital area. The most common types are HPV-6 and/or HPV-11. With the prophylactic vaccination against HPV-6, HPV-11 HPV-16 and HPV-18 it is anticipated to reduce prevalence of external genital warts and cervical cancer.