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.

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

Sep. 16, 2014

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