HPV (human papillomavirus) is a common virus that can cause cancers later in life. HPV is the most common STI in the U.S. – nearly all sexually active men and women get HPV at some point in their lives. About 13 million Americans, including teens, become infected each year (source). HPV can also infect the mouth and throat.
All sexually active men and women can get HPV. Most people who become infected don’t know they have it. HPV is spread by skin-to-skin contact, including vaginal, anal, and oral sex. HPV can be passed from person to person even when there are no symptoms.