HPV stands for Human PapillomaVirus, a collection of over 100 types of viruses responsible for various warty lesions in women and men. The type discussed in this article is genital HPV.
About 40 subtypes of genital HPV can infect various areas such as the cervix, vagina and vulva (“pubic area”) in women. The most familiar appearance is that of warty lesions of the external genitalia, but this is not the most common type. The current most common type of genital HPV has very few or no symptoms and is usually discovered on a screening Pap smear. These types of the virus are sexually transmitted and condoms are only partially protective. Atypical (slightly suspicious looking) cells on a Pap test are usually sent for testing for HPV DNA, while more serious abnormal Pap smear results are assumed to contain the HPV DNA. If the DNA test is negative for HPV, it is considered a negative Pap test result. If it is positive, it means the cervix has evidence of one of thirteen types of the virus associated with abnormal Pap smear. It is estimated that 60 to 90% of sexually active college age women may have exposure to HPV DNA. The great majority of young women will clear this virus without treatment within 6 to 36 months. Some patients will develop dysplasia (pre-cancer) of the cervix due to HPV. If the virus is discovered through Pap testing, often a biopsy will be done of the cervix to determine if dysplasia is present. If only mild or low–grade dysplasia is present, again, most women will clear this without treatment. If moderate or severe (high-grade) dysplasia is present, treatment is usually recommended.
Studies demonstrate that men carry this virus with very few symptoms. Most male sexual partners of women who carry the virus will not have identifiable HPV DNA when tested. This can be frustrating to patients who are often confused and even embarrassed about the transmission of HPV. The virus can lie dormant for some years, making timing of infection difficult or impossible to pinpoint. The good news is that most healthy individuals will not require extensive treatment. For those who do require treatment, there are many simple non-invasive options. Prevention is wise, practicing monogamy; using condoms and having regular gynecologic exams are helpful. Thankfully, a vaccine known as Gardasil® is now available to help prevent many forms of this virus. It is estimated that the rate of abnormal Pap smears will drop dramatically in the near future because of this vaccine. It has FDA approval to be given to all females ages 9-26, but has also been shown to be safe in most age groups, although the vaccine does not treat active disease.