Ongoing oral activity

[Dmans]

I’m a gay man who only ever engages in oral sex, me being the one who does the sucking.   There are times when a guy has ejaculated into my mouth, or precum has been present.  Sometimes I may have a canker on my tongue from accidentally biting it.  Have any of these circumstances put me at risk for hiv?

Thanks for taking the time.

[CurfewX]

The only risks for HIV in adults are:
1) Having unprotected anal or vaginal sex, or
2) sharing intravenous needles with IV drug users.

You aren't really putting yourself at risk for HIV here, although having multiple partners means that you should occasionally test for HIV and STDs, just to ensure that you're disease-free.  I certainly wouldn't worry about it, but if you're concerned, insist that your partners wear condoms when you give them oral.

[Dmans]

Thank you for getting back to me so quickly, I appreciate it.

I’m just a touch confused at the moment because most of the responses I’ve seen on here are quite firm in saying that oral is not a risk for HIV but you’re suggesting that I should still get tested.  Or did I interpret that incorrectly?

[CurfewX]

I'm just going to copy/paste from my FAQ that is pinned to the top of this forum:

Giving oral sex – this presents an extremely low risk.   Expert HIV physicians Drs. Hook and Handsfield state:  “The risk of HIV, if your partner is HIV-positive, is around 1 in 10,000.  That's equivalent to giving BJs to infected men once daily for 27 years before transmission might be likely.”  Neither recommend testing.  

Here is a study of serodiscordant couples that supports their recommendation: https://www.ncbi.nlm.nih.gov/pubmed/12045500
I suggest that you give events like this the same concern as you might to being trampled in an elephant (which is probably none).

The reason I suggest testing periodically is that it sounds like you have a lot of partners, and you SHOULD be testing for STDs in that case. Testing for STDs + HIV is relatively inexpensive or free in many parts of the world, and it's worth being able to reassure partners with a paper that shows your negative test results. This is all totally up to you, but if I had multiple partners in a year, I'd get tested just for peace of mind - my own, and any potential future partners.