HIV is not passed (or only in theory) to the person receiving oral sex. The chances of getting HIV in this way do not change if the person giving oral sex is a smoker or a sex worker.
Other STIs are easily passed through oral sex including syphilis, gonorrhea and Chlamydia. For that reason, we recommend routine screening if you are sexually active and you or your partners have more than one partner.
Check out our charts called “Know My Chances” for more information on ways that STIs are passed.
Please leave a comment to let us know if that answers your question or if you need more information.
For other readers, please feel free to leave a comment, or let us know if this was helpful.