Thank you for your inquiry. From what we gather from the question, you were asking about the possibility of HIV transmission through bleeding open wounds on your hands that were in contact with a razor that may have been previously contaminated with blood. From the information provided, this scenario is determined to be a Negligible Risk (There is a theoretical possibility of transmission under certain extenuating circumstances).
There was one study examining the practice of contaminated barber equipment and the concerns of inadequate sterilisation. The paper notes "though barbers do not carry out procedures that deliberately penetrate the skin, the procedures can inadvertently damage the skin through abrasion or minor accidental cuts. A simple nick caused by clipper or razor blade is enough for infection to occur. Due to the lipid envelope that protects HIV from dehydration, the virus can survive on the surfaces of barbering instruments for a period long enough for transmission to occur, particularly in commercial barber shops" . Therefore if you have good reason to believe that someone was deliberating trying to transmit HIV, it is best to consult a physician for an HIV test.
Recommendation: Refer to a health care provider for more personalised answers.
All the best,
AIDS Vancouver Online/Helpline, Kane
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1. Arulogun OS, Adesoro MO. Potential risk of HIV transmission in barbering practice among professional barbers in Ibadan, Nigeria. African health sciences. 2009;9(1):19-25. link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2932524/