You can get HPV by having vaginal, anal, or oral sex with someone who has the virus. HPV is most commonly spread during vaginal or anal sex. HPV can be passed even when an infected person has no signs or symptoms.
Anyone who is sexually active can get HPV, even if you have had sex with only one person. You also can develop symptoms and signs years after you have sex with someone who is infected. This makes it hard to know when you first became infected.