Last week on December 27, I did visit a massage parlor and had protected vaginal sex. The condom did not break, loosen or leak. However it felt dry, so the lady used couple of drop of massage oil.

I asked the lady about her status, she said she doest have any thing and she always uses protection with every client. I want to trust it but unable to.

In your experience  have you seen any case where there was no condom break, leak or slip but someone did get infected. 

This is kind of keeping me worried and impact my daily life. I would appreciate  if you could help me on this.

Thanks!

The chance a partner like your has HIV is very low -- close to zero if you're in the US or other industrialized country. And even with no condom at all, if a female has HIV, the risk from a single episode of unprotected vaginal sex is under 1 chance in 2,000. Given the low chance she had HIV plus a properly used condom that did not break, the chance you caught HIV from this event probably is no higher than one in a million.

There are two ways to consider condom effectiveness. Biologically, they are nearly 100% effective if properly used and the condom doesn't break. Your 70-80% figure is what is called "use effectiveness": among people who use condoms consistently over many exposures, the effectiveness is lower because of improper use, condom breakage, and so on. For the single exposure you had, you can consider the condom to be 100% protective.

From a medical or risk standpoint, you do not need testing for HIV or other STIs. Of course you are free to be tested anyway, i.e. strictly for reassurance. From a personal standpoint, if somehow I were in your situation, I would not be tested and would continue unprotected sex with my wife with no worry about infecting her with HIV.

I hope these comments are helpful. Let me know if anything isn't clear.

HHH, MD

1 - unless protection failure occurs, even the other person has hiv( which i am assuming, eve though you said in us it’s highly unlikely). There is no risk for HIV, as there was no leak, break or slip, 

2- do you think use of oil makes latex weak and can let hiv pass? 

3 - my symptoms are from prednisone side effects, not from HIV ARS

3- Do i need to take a test for hiv, other than reassuring myself.

Thank you. 

2. You have misunderstood the information and advice about oils and latex condoms. Oil can weaken latex, leading to condom breakage. However, it does not cause increased leakage. If the condom remains intact, protection is complete.

3. I doubt your symptom care due to prednisone, which to my knowledge does not cause tinnitus. But they also are not from HIV/ARS.

4. Yes:  reassurance alone is a valid reason for HIV testing, and  like most anxious person, you probably will be more reassured by a negative test result than by anything more I can say.