Our expert says:
Gay, lesbian and bisexual expert
Hi Conrad and thanks for posting.
Anal and genital warts are fairly common and are caused by a virus referred to as HPV. And yes, anal warts do increase the risk of anal cancer. There is a vaccine to prevent such warts but the problem is that it must be administered prior to any contact with the virus. This means that a person should be vaccinated before they become sexually active.
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