[Question #2454] HIV by a needle poking?

44 months ago
Hi doctor: I read that the risk of hiv from a needle poke with an hiv infected needle is about 1 in 300 chance per exposure. Do you know of any data or biological reason to think my risk would be higher if I have HPV, HSV1 or HSV2? I only have HSV1 but if I had HSV2 would my risk from a needle poke be higher? In other words, would my risk be greater than 1 in 300 if I have any of these conditions? Are there any other conditions which would increase my risk of contracting hiv via needle poke?
Thanks
Edward W. Hook M.D.
Edward W. Hook M.D.
44 months ago
Welcome to the Forum.  While there are numerous studies of factors which modify the risk of sexual transmission of HIV, there are no such studies for needle stick exposures.  The factors which are known to affect the risk for HIV in persons who get needle sticks are: the viral load of the infected person, whether or not the infected person is on therapy, and the amount of blood that is transferred.  There are no known factors which increase or decrease the likelihood of infection in the person receiving the needle stick other than the use of Post Exposure Prophylaxis (PrEP).  EWH
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Edward W. Hook M.D.
Edward W. Hook M.D.
44 months ago
I should add that there is no biological reason to think that the presence of HSV or HPV would change the risk for infection in a person who is stuck with a needle previously used by a person with HIV.  EWH
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44 months ago
I see, thank you. May I ask a follow up question that is related? The information on this site (which is quite useful if I may say so) revealed that mutual masturbation (including hand jobs and fingering of anus//vagina), even when getting each others genital secretions on one another's genitals, butt//anus, vagina, hands, etc. is safe sex and not a risk for HIV. Do the conditions I mentioned above (HSV1 or HSV2 or HPV) or any other medical condition (other std, illness of any kind for example the flu or cold) change mutual masturbation from safe sex to a risky behavior for contracting HIV? And to conclude, do you know if vaginal secretions have more HIV than semen? Or if genital secretions have more HIV than blood? I ask this important question because I fear sometimes that I may get blood on my hands during mutual masturbation and this may change mutual masturbation from safe sex to a risky activity. I appreciate your wisdom and answers.
Edward W. Hook M.D.
Edward W. Hook M.D.
44 months ago
No, irrespective of whether you have HIV or HPV, mutual masturbation and surface contamination with genital secretions (or blood)is a no risk event. 

Regarding your questions about genital secretions, in general, for persons with HIV, genital secretions tend to have lower concentrations of HIV present than is present in their blood.  When STIs are present, the concentration of HIV in genital secretions may increase and actually exceed concentrations in blood until that STI is treated.  This however has NO effect on surface contamination with genital secretions which might occur during mutual masturbation- this is still a no risk event.  The same is true about colds and flu.  I am not sure how to make the meaning of the words NO RISK clearer.

I hope this additional information makes things clear.  Mutual masturbation and contact with genital secretions during mutual masturbation is a no risk event!  EWH
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44 months ago
Dr. 

You wrote == "No, irrespective of whether you have HIV or HPV, mutual masturbation and surface contamination with genital secretions (or blood)is a no risk event. "

I assume you meant irrespective of whether you have HIV or HSV1 or HSV2, mutual masturbation and surface contamination with genital secretions or blood is a no risk event"  Is that right?
44 months ago
Sorry, I meant 

I assume you meant irrespective of whether you have HPV (not HIV as I have written above) or HSV1 or HSV2, mutual masturbation and surface contamination with genital secretions or blood is a no risk event"  Is that right?
Edward W. Hook M.D.
Edward W. Hook M.D.
44 months ago
Sorry, that is a typo.  I would have thought that I made it clear, there is NO RISK for associated with mutual masturbation, IRRESPECTIVE of exposure to genital secretions and IRRESPECTIVE of whether you happen to have HPV, HSV or other dermatological processes.  No risk means no risk!  EWH
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44 months ago
Hi docter, thank you for all your answers. I read this thread will close after my next question. I wanted to be clear that there are no medical conditions of any kind which would have a biological reason to increase my risk from a needle stick. What I mean is that the 1 in 300 risk associated with a needle stick is still 1 in 300 regardless of particular medical conditions, substance use, or any other biological factor. Thank you for all your answers I am much better at mind now.
Edward W. Hook M.D.
Edward W. Hook M.D.
44 months ago
This is a correct summary of the information that I have provided above.  There are no data to indicate that personal medical issues or conditions would change your risk for HIV acquisition following a needle stick from an infected partner.

And with this 3rd answer this thread will be closed shortly.  Take care.  EWH 
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