Is too much oral sex a problem?

Sexual health
1

My wife and I have been married 17 years and recently (over the last year) our love life has improved considerably.  Almost daily she performs oral sex (unprotected) and I'm starting to wonder if there's long term issues that can arise.  I lay back so I know saliva is going into my urethra.  That's my main concern.  Can her saliva do long term damage?  Or maybe bacteria from her mouth?  Side note:  I make sure to be clean beforehand as I don't want to harm her with bacteria.  What risks does she run?

Thank you.

2

Hi, I wouldn't have thought that there would be any problems, the body is absolutely covered with bacteria inside and out, we would be in big trouble without it, it protects the body in many ways.

3

Hi, forgot to say, saliva is antiseptic.

4

There should be no problems. So no worries about that. It's great that your love life has improved.