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Causes

By Mayo Clinic staff

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

Genital HPV infections are contracted through sexual intercourse, anal sex and other skin-to-skin contact in the genital region. 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. Douglas JM. Papillomavirus. In: Goldman L, et al. Cecil Medicine. 23rd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/books/page.do?eid=4-u1.0-B978-1-4160-2805-5..50401-8&isbn=978-1-4160-2805-5&sid=1100799163&type=bookPage§ionEid=4-u1.0-B978-1-4160-2805-5..50401-8--cesec10&uniqId=230895620-4#4-u1.0-B978-1-4160-2805-5..50401-8--cesec10. Accessed Jan. 3, 2011.
  2. Habif TP. Warts. In: Habif TP. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. 5th ed. Edinburgh, U.K.; New York, N.Y.: Mosby Elsevier; 2010. http://www.mdconsult.com/books/page.do?eid=4-u1.0-B978-0-7234-3541-9..00021-3&isbn=978-0-7234-3541-9&sid=1100799163&type=bookPage§ionEid=4-u1.0-B978-0-7234-3541-9..00021-3--s0015&uniqId=230895620-4#4-u1.0-B978-0-7234-3541-9..00021-3--s0015. Accessed Jan. 3, 2011.
  3. Reichman R. Clinical presentation and diagnosis of human papillomavirus infections. http://www.uptodate.com/home/index.html. Accessed Jan. 3, 2011.
  4. Genital HPV infection: Fact sheet. Centers for Disease Control and Prevention. http://www.cdc.gov/std/HPV/STDFact-HPV.htm. Accessed Jan. 3, 2011.
  5. Molpus KL, et al. Gynecologic cancers. In: Goldman L, et al. Cecil Medicine. 23rd ed. Philadelphia, Pa.: Saunders Elsevier; 2008. http://www.mdconsult.com/books/page.do?eid=4-u1.0-B978-1-4160-2805-5..50214-7--cesec29&isbn=978-1-4160-2805-5&sid=1101118090&type=bookPage§ionEid=4-u1.0-B978-1-4160-2805-5..50214-7--cesec40&uniqId=230973572-4#4-u1.0-B978-1-4160-2805-5..50214-7--cesec40. Accessed Jan. 4, 2011.
  6. Goldstein BG, et al. Cutaneous warts. http://uptodate.com.home/index.html. Accessed Jan. 4, 2011.
  7. Warts. American Academy of Dermatology. http://aad.org/publications/pamphlets/common_warts.html. Accessed Jan. 4, 2011.
  8. Breen E, et al. Condylomata acuminata (anogenital warts). http://uptodate.com/home/index.html. Accessed Jan. 4, 2011.
  9. Human papillomaviruses and cancer. National Cancer Institute. http://www.cancer.gov/cancertopics/factsheet/Risk/HPV. Accessed Jan. 4, 2011.
  10. Centers for Disease Control and Prevention, et al. Recommendations on the use of quadrivalent human papillomavirus vaccine in males — Advisory Committee on Immunization Practices (ACIP). MMWR Recommendations and Reports. 2011:60;1705.
DS00906 Jan. 20, 2012

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