Typically if one partner has a fungal infection like Candida, the other partner has it as well, even though they may appear to be asymptomatic. They noted that this was more common in smokers and in men with an increased number of oral sex partners. Presently, these tests are not commercially available, and are still in research labs only. When considering the entire US population of over million people, the incidence rate of oral cancers from it are still relatively rare mathematically, though the media frequently likes to state that this is an epidemic. Fast facts on oral sex and throat cancer Oral sex does not directly cause throat cancer, but it can spread HPV. Even patients with active disease who have not responded to other therapies have responded to this therapy, Ramos said. These risk factors include: But we do know that HPV-related oropharyngeal cancer is twice as common in men than women, and is most common in heterosexual men in their 40s and 50s compared to the rates in homosexual men. X Refrain from posting comments that are obscene, defamatory or inflammatory, and do not indulge in personal attacks, name calling or inciting hatred against any community. Another study published in found that in America, 6 in men and 1 in women carried potentially cancer-causing types of HPV in their mouth. Where did the story come from? This study also looked at how common mouth and throat cancers were in people carrying these harmful types of HPV, and found it's still very rare: If you have been with your partner for a long time, you probably have HPV already. Very few people infected with HPV will develop cancer. Risk Factors: However, they noted that mouth and throat cancers were becoming more common, and that it would be useful to identify people at higher risk of these, including people who have a high risk of getting an oral HPV infection.