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Dirty hands with hiv touched mouth



Is it possible that if my hands had hiv blood on it and touched mouth one second later I can get hiv?

Worried thanks


Hi there,

Thank you for your inquiry. From what we gather from your question, you were asking about the possibility of HIV transmission through contact between HIV positive blood, and your mouth.

With the information given, we assume that you are addressing fresh blood that has touched your mouth. With this in mind, we consider this exposure to be of Negligible Risk: (There are no evidence or no documented cases of transmission). In this case there is a very small yet technically possible opportunity for HIV transmission given multiple conditions are met such as:

  • the presence of a fresh/open wound on/within your mouth
  • immediate contact between HIV positive blood and fresh/open wound

Contact with blood which has been on an environmental surface (especially with the mouth) provides No Risk of HIV transmission (transmission of HIV is not possible in the given scenario). The human mouth proves to be a tough environment for HIV to survive in, as components in saliva inhibit the ability for HIV to enter new cells (1). Further, HIV does not survive long outside of the body, and has a rapid reduction in concentration on environmental surfaces (2).

Recommendation: There are no evidence or no documented cases of transmission refer to Physician for more personalized answers.

All the best,

AIDS Vancouver Online/Helpline, Cody