In men, the head and neck cancers mainly involved the tongue, tonsils and pharynx -- or "oropharyngeal" cancers, the agency reported.

Some high-risk types of oral HPV have been linked to oropharyngeal cancers, which are more prevalent in men than women.

The best way to diagnose oropharyngeal cancers is via a thorough head and neck examination by an ear, nose and throat surgeon.