Can HIV be transmitted during oral sex?HIV can pose a small risk for both the active (person giving the oral stimulation) and receptive (person receiving oral stimulation) partner.
Transmission from an HIV positive receptive partner to an HIV negative active partner may occur when the active partner gets sexual fluid (semen or vaginal fluid) or blood (from menstruation or a wound somewhere in the genital or anal region) into a cut, sore, ulcer or area of inflammation somewhere in their mouth or throat. The linings of the mouth and throat are very resistant to viral infections such as HIV, so infection is unlikely if they are healthy.
Transmission from an HIV positive active partner to an HIV negative receptive partner is generally believed to be less common. This is because HIV is normally only present in saliva in very low levels that are not sufficient to cause infection. The only risk in this scenario would be from bleeding wounds or gums in the HIV positive person’s mouth or on their lips, which may transfer blood onto the mucous membranes of the other person’s genitals or anus, or into any cuts or sores they may have.