This question relates to all the main STIs that may be a concern with regard to a male receiving oral sex. In particular, as a man if I receive unprotected oral sex, which of the following (or any other STIs not mentioned here) may I be at risk of acquiring: Chlamydia, Gonorrhea, Herpes, HPV, Syphilis, NGU, HIV.
I believe in certain cases if the female (who performs the the oral sex on the male) has obvious symptoms of a certain STI, then the risk is much higher for the male to contract that STI, while if symptoms are not there, then the risk is much lower.
I'm hoping for replies to the above. Many thanks.