Note - I removed this video. I thought it was mild by YouTube standards, but some people thought it was too sexual.
I never knew that oral sex caused cancer.
Michael Douglas – the star of Basic Instinct and Fatal Attraction – has revealed that his throat cancer was apparently caused by performing oral sex.
In a surprisingly frank interview with the Guardian, the actor, now winning plaudits in the Liberace biopic Behind the Candelabra, explained the background to a condition that was thought to be nearly fatal when diagnosed three years ago. Asked whether he now regretted his years of smoking and drinking, usually thought to be the cause of the disease, Douglas replied: "No. Because without wanting to get too specific, this particular cancer is caused by HPV [human papillomavirus], which actually comes about from cunnilingus."
Here is the government's solution:
Some more info about oral sex and cancer: