Health Facts - STD FAQS
HPV
What is the Difference Between Low-Risk and High-Risk HPV?
Low-risk HPV viral types cause the development of warts.
Certain
types of HPV, such as types 6 and 11, cause more than 90% of all cases
of condyloma, or genital warts, Most of the other low-risk HPV types
are considered to be harmless and do not have any symptoms. There have been recent reports of genital warts being present in other body areas, such as around the breasts and in the mouth.
While this has been reported, it does seem to be a rare occurrence.
High-risk HPV types, such as types 16 and 18, appear to produce cellular changes in genital tissues (often referred to as dysplasia) and have been associated with more than 70% of all cervical, vaginal, and vulvar cancers.
These subtypes of HPV have also been linked to a majority of anal cancers and some penile cancers, as well.
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