ruhollah124
I am a male and I visited a female sex worker yesterday and I received an unprotected oral sex. After that we had protected vaginal sex. After condom removal I noticed some drops of diluted blood on my penis. I asked her if she had bleeding gums and she said yes because of some kind of acidic sweets that she eats she has bleeding gums.  I feel tired today and kind dizzy. I wanna know what are my chances of contracting HIV from this scenario ? 
Thanks.

 
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helpline-volunteer
Hi there,

Thank you for your inquiry. From what we gather from your question, you are asking about the possibility of HIV transmission after receiving oral sex from an individual who may have had bleeding gums. From the information given, this scenario is determined to be Negligible Risk (there is no evidence or no documented cases of transmission, However, there is a theoretical possibility of transmission under certain extenuating circumstances).

Receiving oral sex without a barrier is considered to be of much lower risk for HIV transmission compared to anal or vaginal sex due to the fact that HIV is not passed through saliva. HIV is not passed through saliva because saliva contains enzymes that can inactivate HIV particles (1). This potentially may be true even if the saliva contains blood.

The reason why receiving oral sex without a barrier is considered to be of Negligible rather than No Risk is due to the fact that HIV transmission is theoretically possible if you had any cuts, sores or inflammation on your penis (2). According to the HIV Transmission Equation (see image below), HIV transmission requires a bodily fluid (e.g. blood) that has direct access to the bloodstream (e.g. via open cuts and sores, sexual organs, mucosal membranes, etc.) through an High/Low/Negligible Risk activity.

Helpline Transmission Equation .jpg
Recommendation: There is no evidence or no documented cases of transmission. Refer to a healthcare professional for more personalized answers.

Best regards,
AIDS Vancouver Helpline/Online, Shirley

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Additional Resources:
(1) The Oral Mucosa Immune Environment and Oral Transmission of HIV/SIV
(2) Oral sex
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