"HPV" redirects here. For other uses, see HPV (disambiguation).
Medical condition
Human papillomavirus infection
Other names
Human papillomavirus
The major capsid protein L1 of HPV 11
Specialty
Infectious disease, gynecology, oncology
Symptoms
None, warts[1][2]
Complications
Cancer of the cervix, vulva, vagina, penis, anus, mouth, tonsils, or throat[1][2][3]
Causes
Human papillomavirus spread by direct contact
[4][5]
Risk factors
Sexual contact
Prevention
HPV vaccines, condoms[4][6]
Frequency
Most people are infected at some point in time[4]
Human papillomavirus infection (HPV infection) is caused by a DNA virus from the Papillomaviridae family.[5] Many HPV infections cause no symptoms and 90% resolve spontaneously within two years.[1] In some cases, an HPV infection persists and results in either warts or precancerous lesions.[2] These lesions, depending on the site affected, increase the risk of cancer of the cervix, vulva, vagina, penis, anus, mouth, tonsils, or throat.[1][2][3] Nearly all cervical cancer is due to HPV, and two strains – HPV16 and HPV18 – account for 70% of all cases.[1][7]HPV16 is responsible for almost 90% of HPV-positive oropharyngeal cancers.[3] Between 60% and 90% of the other cancers listed above are also linked to HPV.[7]HPV6 and HPV11 are common causes of genital warts and laryngeal papillomatosis.[1]
An HPV infection is caused by the human papillomavirus, a DNA virus from the papillomavirus family.[8] Over 200 types have been described.[9] An individual can become infected with more than one type of HPV,[10] and the disease is only known to affect humans.[5][11] More than 40 types may be spread through sexual contact and infect the anus and genitals.[4] Risk factors for persistent infection by sexually transmitted types include early age of first sexual intercourse, multiple sexual partners, smoking, and poor immune function.[1] These types are typically spread by sustained direct skin-to-skin contact, with vaginal and anal sex being the most common methods.[4] HPV infection can also spread from a mother to baby during pregnancy.[10] There is no evidence that HPV can spread via common items like toilet seats,[12] but the types that cause warts may spread via surfaces such as floors.[13] HPV is not killed by common hand sanitizers and disinfectants, increasing the possibility of the virus being transferred via non-living infectious agents called fomites.[14]
HPV vaccines can prevent the most common types of infection.[4] To be most effective, inoculation should occur before the onset of sexual activity, and are therefore recommended between the ages of 9–13 years.[1] Cervical cancer screening, such as the Papanicolaou test ("pap smear"), or examination of the cervix after applying acetic acid, can detect both early cancer and abnormal cells that may develop into cancer.[1] Screening allows for early treatment which results in better outcomes.[1] Screening has reduced both the number of cases and the number of deaths from cervical cancer.[15] Genital warts can be removed by freezing.[5]
Nearly every sexually active individual is infected by HPV at some point in their lives.[4] HPV is the most common sexually transmitted infection (STI), globally.[5] High-risk HPVs cause about 5% of all cancers worldwide and about 37,300 cases of cancer in the United States each year.[9] Cervical cancer is among the most common cancers worldwide, causing an estimated 604,000 new cases and 342,000 deaths in 2020.[1] About 90% of these new cases and deaths of cervical cancer occurred in low- and middle-income countries.[1] Roughly 1% of sexually active adults have genital warts.[10] Cases of skin warts have been described since the time of ancient Greece, but that they were caused by a virus was not determined until 1907.[16]
^ abcdefghijklCite error: The named reference who-cervicalc was invoked but never defined (see the help page).
^ abcdLjubojevic S, Skerlev M (2014). "HPV-associated diseases". Clinics in Dermatology. 32 (2): 227–34. doi:10.1016/j.clindermatol.2013.08.007. PMID 24559558.
^ abcAnjum, Fatima; Zohaib, Jamal (4 December 2020). "Oropharyngeal Squamous Cell Carcinoma". Definitions (Updated ed.). Treasure Island (FL): StatPearls Publishing. doi:10.32388/G6TG1L. PMID 33085415. S2CID 229252540. Bookshelf ID: NBK563268. Retrieved 6 February 2021 – via NCBI.
^ abcdefg"What is HPV?". Centers for Disease Control and Prevention. 28 December 2015. Archived from the original on 7 August 2016. Retrieved 10 August 2016.
^ abcdeMilner DA (2015). Diagnostic Pathology: Infectious Diseases. Elsevier Health Sciences. p. 40. ISBN 978-0-323-40037-4. Archived from the original on 11 September 2017.
^"Fact Sheet for Public Health Personnel | Condom Effectiveness | CDC". Centers for Disease Control and Prevention. 25 March 2013. Archived from the original on 27 May 2017. Retrieved 1 May 2017.
^ ab"The Link Between HPV and Cancer". Centers for Disease Control and Prevention. 30 September 2015. Archived from the original on 9 November 2015. Retrieved 11 August 2016.
^Cite error: The named reference Bzhalava2013 was invoked but never defined (see the help page).
^ abCite error: The named reference hpv-nci was invoked but never defined (see the help page).
^ abc"Human Papillomavirus (HPV) Questions and Answers". Centers for Disease Control and Prevention. 28 December 2015. Archived from the original on 11 August 2016. Retrieved 11 August 2016.
^"Pink Book (Human Papillomavirus)" (PDF). Centers for Disease Control and Prevention. Archived (PDF) from the original on 21 March 2017. Retrieved 18 April 2017.
^"5 Things You Might Not Know About Human Papillomavirus". Centers for Disease Control and Prevention. 20 January 2016. Retrieved 22 May 2020.
^"Human Papilloma Virus (HPV)" (PDF). WRHA. 18 November 2019. Retrieved 26 March 2019.
^Meyers J, Ryndock E, Conway MJ, Meyers C, Robison R (June 2014). "Susceptibility of high-risk human papillomavirus type 16 to clinical disinfectants". J Antimicrob Chemother. 69 (6): 1546–50. doi:10.1093/jac/dku006. PMC 4019329. PMID 24500190.
^Sawaya GF, Kulasingam S, Denberg TD, Qaseem A (June 2015). "Cervical Cancer Screening in Average-Risk Women: Best Practice Advice From the Clinical Guidelines Committee of the American College of Physicians". Annals of Internal Medicine. 162 (12): 851–9. doi:10.7326/M14-2426. PMID 25928075. S2CID 25957804.
^Tyring S, Moore AY, Lupi O (2016). Mucocutaneous Manifestations of Viral Diseases: An Illustrated Guide to Diagnosis and Management (2nd ed.). CRC Press. p. 207. ISBN 978-1-4200-7313-3.
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