I had a very nasty prostate infection about three years ago and subsequently gave up having anal sex with my wife. The doctor never said it was caused by the anal intercourse and I can't really prove that there is a connection. Now my wife would like to resume this, but I am concerned that I may get another infection -- nothing is worth that!
Please don't suggest a condom because it takes me forever to have an orgasm anyway and a condom makes it last so long that my wife gets very sore.