Exceedingly low HPV vaccination rates among young men are putting the men, and their sexual partners, at increased risk for the human papillomavirus. Certain strains of the virus cause genital warts and are implicated in penile cancers, say Upstate urologists Timothy Byler, MD (at right in photo), and Michael Daugherty, MD (at left), who have conducted research on the topic. They explain what men can do to protect themselves.