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Men are at a Higher Risk of Cancers Linked to Oral Sex

by Dr. Trupti Shirole on February 14, 2016 at 11:09 PM
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 Men are at a Higher Risk of Cancers Linked to Oral Sex

Human papillomavirus, or HPV, is one of the most common sexually transmitted infections. Men are twice as likely as women to get cancer of the mouth and throat linked to the HPV, revealed researchers.

For men, the risk of HPV-driven cancers of the head and neck rise along with the number of oral sex partners, suggested researchers at the American Association for the Advancement of Science (AAAS) annual meeting in the US capital.

"Nearly two out of three of these oral cancers in the United States and most western nations are caused by infection with the HPV 16 strain of the virus, and incidence of cancer is on the rise in recent years," said Gypsyamber D'Souza, who teaches epidemiology at Johns Hopkins University in Baltimore, Maryland.

Middle aged white men are at particularly high risk compared to other races.

D'Souza said, "Our research shows that youths are engaging in oral sex at increasingly young ages, compared to past generations. Our research shows that for men, the number of oral sex partners - as that number increases, the risk of an oral HPV infection increases. But with women, the number of sexual partners does not appear to raise the risk. Comparing men and women with the same number of sexual partners, a man is much more likely to become infected with oral HPV than a woman. Furthermore, women who have a greater number of vaginal sex partners appear to face a lower risk of oral HPV infection."

D'Souza further added, "The reason may be that when women are first exposed to HPV vaginally, they mount an immune response that prevents them from getting an oral HPV infection. But men do not seem to have equally robust immune responses. Men are not only more likely to be infected with oral HPV infection than women, but our research shows that once you become infected, men are less likely to clear this infection than women, further contributing for the cancer risk."

D'Souza also said, "HPV infection is quite common, and most people clear the virus within a year or two. In some cases, however, HPV does not go away and can lead to cellular changes in the mouth and throat, which eventually become cancerous."

Oral sex may raise the risk of head and neck cancer by 22%, suggests a study published in Journal of the American Medical Association (JAMA). This type of cancer has risen 225% in the last two decades.

The US Centers for Disease Control and Prevention (CDC) urges HPV vaccination for all preteen boys and girls so they can be protected against the infection before they become sexually active.

Source: AFP

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