Question
Is U=U still protect against HIV if we notice blood during sex?
15 October 2026. Related: All topics, HIV transmission, Sero different couples, Sexual health.
Hi there
My partner is HIV positive. He has been on TLD medication for the last 6 years and his viral load is completely ‘Undetectable’.
Recently, we had oral and anal sex. We used a condom, but it broke during the act. We realized it immediately and replaced it with a new one. However, two days after the intercourse, I noticed some bleeding from my rectum, likely due to a minor tear or fissure caused by friction.
I am aware of the U=U (Undetectable = Untransmittable) rule, but my anxiety is making me overthink. My questions are:
Considering his undetectable status, the broken condom, and the bleeding/tear after 2 days, is there absolutely any risk of HIV transmission to me.
Does the U=U rule still apply 100% even if there is a tear or bleeding involved?
Please guide me, as I am suffering from severe anxiety regarding this. Thank you
Answer
Hi there
Yes, please don’t worry about this.
Several careful research studies proved the risk of transmission is zero when viral load is undetectable, even without condoms.
Actually, these studies were in sero-different couples – both gay and straight – when condoms were not being used. In the PARTNER studies, for example, people had sex without condoms more than 100,000 times.
Blood during sex is also pretty common and so would have also occurred during these studies, and there were still no transmissions.
More info on U=U is here:
i-base.info/u-equals-u
Hi Nobuhle, thanks. Undetectable for U=U is defined as having a viral load less than 200 copies/mL. Some tests are more sensitive though and undetectable means less than 50 copies/mL or 20 copies/mL. Anything higher than 200 doesn’t count as U=U even though any risk would still be very low when viral load is between 200 and 1000 copies/mL.
If your viral load is between 200 and 1000 though, your clinic should try to find out why.
If it is higher than 1000 copies/mL your clinic should talk to you about this too – perhaps to change your meds.
This is because between 200 and 1000 you could be developing drug resistance.
So you know your last viral load test results?
So if you have not reached the U=Undetectable one always have to use a condom to protect the other person even though you take your medicine daily for the past 2 years?