Anonymous
I was touching a guy that I'm dating when he put his penis back in his underwear before orgasming and cumming, my anxiety is that maybe some had flown out of his peins and landed on my underwear, could it then soak through and go up inside my vagina and give me HIV?
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Anonymous
Hello,

Thank you for your inquiry. From what we gather from the question, you were asking about the risk of acquiring HIV after the individual you are dating orgasmed inside of their underwear. You are concerned that some of this semen may have landed on your underwear, soaked through and entered your vagina. From the information given, this scenario is determined to be No Risk
(transmission of HIV is not possible in the given scenario).

The scenario mentioned above does not meet the three components of the transmission equation(1). It does not satisfy the equation because:

* For transmission to occur the three components of the HIV Transmission Equation must be met: there must be HIV present in a bodily fluid (ie: in blood, semen or rectal secretions), direct access to the bloodstream (ie: inside of the vagina, anus and other mucous membranes) paired with a high risk activity (ie: unprotected anal or vaginal intercourse, sharing needles, mother to child)(1).

* HIV does not survive long outside the human body (such as on surfaces), and it cannot reproduce outside a human host(2).

In the scenario you provided, you state that you were touching the individual you are dating when they put their penis back into their underwear to orgasm. You are concerned that some semen could have landed on your underwear, soaked through and entered your vagina. This is determined to be a No Risk scenario. HIV does not survive long outside the human body (such as on surfaces, like clothing), and it cannot reproduce outside a human host(2). This means that any semen on your underwear was outside of the human body, exposed to environmental conditions and was unable to transmit HIV to you. HIV is not transmitted by an item of clothing, such as underwear. There was also no direct access for HIV to enter your bloodstream. Semen on underwear does not provide the conditions necessary for HIV to travel up your vagina and access your bloodstream.

If in the future you and your partner decided to engage in vaginal or anal intercourse, we would like to encourage you to use a condom. HIV incidence is reduced by 80% with the use of condoms during all acts of penetrative vaginal sex. Condoms do not reduce the transmission of HIV to zero. However, consistent condom usage is one of the primary methods to protect against HIV transmission(3).


Recommendation: No need for HIV test with the scenario provided, refer to a physician for other health related questions.

Regards,
AIDS Vancouver Helpline/Online, Hilary




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