Can someone tell me how men find out if they have hpv?

See a doc / provider. Hpv can cause genital infections of the penis, scrotum, cervix, vagina, vulva, perineum, and anus / perianal skin. Men can start by seeing a provider and having a physical exam of their genitals to see if there are any warts or skin / mucus membrane changes present. An experienced doc can often tell by just looking. In some cases, scrapings or biopsy might be performed.