By Nick Allen in Los Angeles
The Oscar-winning star went into detail about the cause of his illness for the first time in an interview with the Guardian.
It had been assumed by some that the cancer could have been related to his years of smoking, but the Basic Instinct star said it followed his contraction of HPV (human papillomavirus), a sexually-transmitted virus that is best known as a common cause of cervical cancer, but which can also cause throat cancer.
Asked if he regretted having smoked, the actor told the newspaper: “No. Because without wanting to get too specific, this particular cancer is caused by HPV which actually comes about from cunnilingus.
“I did worry if the stress caused by my son’s incarceration didn’t help trigger it. But yeah, it’s a sexually transmitted disease that causes cancer.”
He jokingly added: “And if you have it, cunnilingus is also the best cure for it.”