12/07/2025
Can HIV spread by kissing? HIV infection happens when certain body fluids from a person living with HIV — such as blood, semen, vaginal fluids, re**al fluids, or breast milk — come into direct contact with another person’s bloodstream or mucous membranes. For transmission to occur, there must be a direct exchange of these fluids, and the person living with HIV must have a detectable amount of the virus in their body (a high viral load). Saliva, sweat, and tears do not transmit HIV, as the amount of virus in them is either absent or too low to cause infection.
When it comes to oral s*x, the risk of HIV transmission is very low, but not zero and the chances of HIV passing from one person to another this way are much smaller than with vaginal or a**l s*x. However, if there are open cuts, sores, bleeding gums, or any wounds in the mouth, these could provide an entry point for the virus. The risk also increases if ej*******on happens in the mouth or if either partner has a STI, which can make the tissues more prone to infection.
Saliva alone does not transmit HIV, and casual oral contact or kissing is not a risk for HIV infection. The risk becomes even lower — nearly zero — if the HIV-positive partner is on ART.