Definition for Human papillomavirus

From Biology Forums Dictionary

Out of all of the sexually transmitted infections, human papillomavirus (HPV) is the most prevalent. According to the United States' Centers for Disease Control and Prevention, half of all people who are sexually active will contract the virus at some point. It is primarily passed through genital-to-genital contact but also can be transmitted through oral sex.

There are more than 100 types of papillomaviruses, and most strains cause no noticeable problems. Most people who have human papillomavirus will not experience any symptoms, but those with certain low-risk strains might develop genital warts or even warts in the throat. These warts first appear as small bumps or groups of bumps, and they can appear within weeks or months of contracting the virus.

Individuals who have a high-risk strain of the virus could develop cancer of the cervix, vulva, anus or penis. Human papillomavirus is responsible the majority of cervical cancer cases. The Centers for Disease Control and Prevention state that, each year in the United States, 12,000 women get cervical cancer.

As of 2010, there was no test readily available to determine whether or not one has human papillomavirus. For women, there is one test that is used to follow up after an abnormal Pap test result that can identify some of the high-risk, cancer-causing strains of the virus. There is no diagnostic test for men, so many might have no idea that they have it.