Anonymous
Hello.
Thanks for the reply to my question "blow job with pants and underwear", from the day 01-20-2016.
I was glad an happy to Alex considered the activity described as not a risk and i don't need a HIV test.
I would however clarify some doubts:
1- In my case even wet pants and underwear can be considered that HIV virus can not pass throurgh clothing? We can consider the clothes a universal barrier against HIV in oral sex?
2 - Why in oral sex never put the virus HIV hypothesis enter the urethra?
3 - Existing small cuts, minor bleeding, blisters or pimples on the penis head they should be worrying if necessary healthcare?
I apologize for my bad English and thank you for your help.
Bye
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Anonymous
Hello,

Thank you for contacting AIDS Vancouver. I am glad to hear that the response to your post has offered you some reassurance, I will follow up on your questions below.

Here is a [link](http://helpline.aidsvancouver.org/question/blow-job-pants-and-underwear) to the original post for reference purposes.

First since these questions are all concerned with transmission of the virus I will provide our transmission equation

HIV TRANSMISSION EQUATION


BODY FLUID
+
ACTIVITY
+
DIRECT ACCESS TO BLOODSTREAM
---------- -------- ----------------------------
• blood (including menstrual) • unprotected anal or vaginal intercourse • vagina
• semen • sharing needles • anus
• pre-cum • mother to child (in specific cases) • urethra in the penis
• rectal secretions • open cuts and sores (in theory)
• vaginal fluids • other mucosal membranes
• breast milk • points of needle injection  
One thing to note on the above chart is that saliva is not included as a bodily fluid that can transmit the virus. This is because saliva has enzymes in it that break down the virus and prevent it from transmitting.

1. Receiving oral sex has a negligible risk of HIV transmission, and giving oral sex has a low risk of HIV transmission. These smaller risks are due to the ability of saliva to break down the virus mentioned earlier in the post. Adding clothing as an extra barrier further reduces the risk of transmission. Receiving oral sex through clothing is a no risk activity, and giving oral sex will be downgraded to a negligible risk activity. Negligible risk means that while transmission is theoretically possible there has never been a reported case. Ejaculate could theoretically pass through clothing which is why there is still some risk for the partner giving the oral sex.

2. I believe this question asks about whether the virus can be transmitted through the urethra. This is possible, and if you look on the chart you will see the urethra is listed as an access point. Saliva is not listed, since it degrades the virus which is why the risk of acquiring HIV from oral sex is lower than from penetrative sex.

3. Cuts, bleeding, blisters and pimples on your penis may require attention from your healthcare provider. I would recommend seeing them for follow-up. In regards to HIV transmission, cuts on the skin of your body have to be serious, the kind that require medical attention such as stitches in order to provide access to your bloodstream. Cuts or sores on mucous membranes (such as the foreskin and urethra of the penis) make it easier for HIV to enter the body so they will increase the risk of HIV transmission. Here is a [link](http://www.catie.ca/en/pif/fall-2011/exposure-infection-biology-hiv-transmission) with more information about this topic.

Just to bring this back to your original situation since saliva is the bodily fluid you were exposed to, through your clothes, you are still at no risk of acquiring HIV, regardless of whether you have cuts on your penis.

I hope that this post has addressed your follow-up questions.

Best regards,

Alex

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