Some factors that increase the risk of transmission include: HIV is more likely to pass to others during the early stages of the infection. This is more of a risk if the person performing the cunnilingus has oral cuts, oral sores, or bleeding gums. However, the chances of the virus passing in this way are still substantially lower than the risks associated with anal or vaginal sex.ĭuring cunnilingus, or mouth-to-vagina sex, HIV can pass via vaginal fluid.

The risk is higher if the partner has bleeding gums or oral sores or cuts. During oral sex, the transmission of HIV is possible if someone who has a detectable viral load ejaculates into the mouth of a sexual partner.įor this reason, fellatio, or mouth-to-penis sex, is the kind of oral sex most likely to result in HIV transmission.