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Causes

By Mayo Clinic staff

HPV infection occurs when the virus enters your body through a cut, abrasion or imperceptible tear in the outer layer of your skin. The virus is transferred primarily by skin-to-skin contact.

HPV infections associated with genital warts and related lesions are contracted through sexual intercourse, anal sex and other skin-to-skin contact in the genital regions. Some HPV infections that result in oral or upper respiratory lesions are contracted through oral sex.

Rarely a mother with an HPV infection may transmit the virus to her infant during delivery. This exposure may cause HPV infection in the baby's genitals or upper respiratory system.

References
  1. Human papillomavirus: HPV information for clinicians. Centers for Disease Control and Prevention. http://www.cdc.gov/std/hpv/common-clinicians/ClinicianBro-fp.pdf. Accessed Jan. 30, 2009.
  2. Warts, herpes simplex, and other viral infections. In: Habif TP. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. Philadelphia, Pa.: Mosby Elsevier; 2004. http://www.mdconsult.com/das/book/body/118486619-4/0/1195/75.html?tocnode=51441112&fromURL=75.html. Accessed Jan. 30, 2009.
  3. Reichman R. Epidemiology of human papillomavirus infections. http://www.uptodate.com/home/index.html. Accessed Jan. 30, 2009.
  4. Cancer facts & figures 2008. American Cancer Society. http://www.cancer.org/downloads/STT/2008CAFFfinalsecured.pdf. Accessed Jan. 30, 2009.
  5. Reichman R. Clinical presentation and diagnosis of human papillomavirus infections. http://www.uptodate.com/home/index.html. Accessed Jan. 30, 2009.
  6. Human papillomaviruses and cancer: Questions and answers. National Cancer Institute. http://www.cancer.gov/cancertopics/factsheet/Risk/HPV. Accessed Feb. 2, 2009.
  7. Reichman R. Treatment and prevention of human papillomavirus infections. http://www.uptodate.com/home/index.html. Accessed Jan. 30, 2009.
  8. Reichman RC. Human papillomavirus infections. In: Fauci AS, et al. Harrison's Principles of Internal Medicine. 17th ed. New York, N.Y.: McGraw-Hill Medical; 2008. http://www.accessmedicine.com/content.aspx?aID=2895508&searchStr=human+papillomavirus. Accessed Feb. 2, 2009.
  9. HPV vaccine information for young women. Centers for Disease Control and Prevention. http://www.cdc.gov/std/Hpv/STDFact-HPV-vaccine.htm. Accessed Feb. 2, 2009.
  10. The Pap test. The American College of Obstetricians and Gynecologists. http://www.acog.org/publications/patient_education/bp085.cfm. Accessed Feb. 2, 2009.
  11. Centers for Disease Control and Prevention, et al. Sexually transmitted diseases treatment guidelines, 2006. MMWR Recommendations and Reports. 2006;55:1. http://www.cdc.gov/mmwr/preview/mmwrhtml/rr5511a1.htm. Accessed Feb. 2, 2009.

DS00906

April 7, 2009

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