THE FACTS ABOUT HUMAN PAPILLOMA VIRUS (HPV)


What is HPV?
Human papilloma virus (HPV) is a virus that infects the skin and mucous membranes (tissues that line the mouth, cervix, vagina, urethra and anus) of humans.  Of the more than 100 strains of HPV, approximately 30 cause genital infections.

How many people have HPV?
Five to six million Americans become infected with genital HPV every year. Twenty million Americans are currently infected with the virus, and another 80 million have been infected at some time in the past. This means that 75 percent of sexually active Americans are or have previously been infected.

How does someone get HPV?
HPV is primarily spread by skin-to-skin contact with an infected person or by contact with body fluids contaminated with the virus. This means that most cases of genital HPV are acquired through sexual intercourse. Transmission of HPV via oral sex, genital touching and via inanimate objects may also be possible, but the risk of infection from these activities has not been well documented.

What are the symptoms?
Most patients with HPV infection have no symptoms. Approximately 1 percent of all individuals who have been infected with HPV and seven percent of those with current HPV infection have genital warts.

How does someone find out s(he) has HPV?
Most people who are infected with HPV have no visible signs of infection. Since testing for HPV infection is not performed routinely, most infected women discover their infection when abnormalities are detected on a Pap smear. Most asymptomatic men do not know they are infected.

How is HPV treated?
HPV infection is not curable, although most HPV infections resolve spontaneously. Individuals with genital warts typically undergo treatment with topical medications applied to the wart in the physician’s office or at home. Such medications may cause the warts to decrease in size or disappear. Even if warts do resolve, infection may remain, and can still be passed on to a future sexual partner. In addition, warts frequently recur in the months following treatment.

What are some of the long-term effects of HPV infection?
Annually, 2.5 million women experience an abnormal Pap smear in the United States, with a majority of these due to HPV infection. Untreated cervical intraepithelial neoplasia (the “pre-cancer” that typically causes abnormal Pap smears) can develop into cervical cancer. In fact, cervical cancer occurs in approximately 13,000 women every year in the United States, and kills almost 5,000 American women yearly. HPV is the primary cause of over 99 percent of cervical cancers. HPV is also associated with a number of other cancers, including oral, vaginal, vulvar, penile and anal cancer.

How can my teen avoid getting HPV?
Abstinence from sexual activity - including oral sex - or lifetime faithfulness to one uninfected partner is the only certain way for your teen to avoid being infected sexually. If your teen has already been sexually active, he or she needs to be tested for STDs.

Learn about other common STDs...

Information adapted from The Medical Institute for Sexual Health web site.
www.medinstitute.org