Your past history of infections is exactly the reason this doctor was way more thorough in his examination. It is not very common for men to get bladder infections, and what he checked on you would be the normal procedure. Diseases and the prostate are the other two things to check. He was just trying to see if there was somethng else going on to cause you to get the infections. And everybody is asked these questions about their sex life, single people, males and females, because if the person did have a sexually transmitted disease, the partners would have to be checked also. So, I know the questions and tests are not comfortable, but they do this with everybody who has a history of infections.