Veteran Hollywood star Michael Douglas says a cancerous tumor that developed in his throat three years ago was caused by oral sex.
The 68-year-old actor, who stars as entertainer Liberace in new movie Behind the Candelabra, told Britain's Guardian that the trouble was not caused by hard drinking or heavy smoking but by a sexually transmitted disease.
"Without wanting to get too specific, this particular cancer is caused by HPV, which actually comes about from cunnilingus," he said in explaining the human papillomavirus he contracted.
"I did worry if the stress caused by my son's incarceration didn't help trigger it," he went on. His son, Cameron, is serving a 10-year prison term for drug possession and dealing.
"But yeah, it's a sexually transmitted disease that causes cancer. And if you have it, cunnilingus is also the best cure for it."
He did not say what his wife, Oscar- winning Welsh actress Catherine Zeta- Jones, 43, thinks of that. But she has other troubles, needing treatment for bipolar disorder.
Two-time Oscar winner Douglas also said that in 2010 he battled stage- four cancer and beat it with chemotherapy and radiotherapy. "I have to check in regularly ... but I'm more than two years clear."
Researchers back the oral sex- throat cancer link. HPV also causes 99 percent of cases of cervical cancer.