Timing and intensity of oral sex may affect risk of oropharyngeal cancer

Human papillomavirus (HPV) can infect the mouth and throat to cause cancers of the oropharynx. A new study published early online in Cancer, a peer-reviewed journal of the American Cancer Society, has found that having more than 10 prior oral sex partners was associated with a 4.3-times greater likelihood of having HPV-related oropharyngeal cancer. The study also shows that having oral sex at a younger age and more partners in a shorter time period (oral sex intensity) were associated with higher likelihoods of having HPV-related cancer of the mouth and throat.

Previous studies have shown that performing oral sex is a strong risk factor for HPV-related oropharyngeal cancer. To examine how behavior related to oral sex may affect risk, Virginia Drake, MD, of Johns Hopkins University, and her colleagues asked 163 individuals with and 345 without HPV-related oropharyngeal cancer to complete a behavioral survey.

In addition to timing and intensity of oral sex, individuals who had older sexual partners when they were young, and those with partners who had extramarital sex were more likely to have HPV-related oropharyngeal cancer.

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