Is there a risk of HIV transmission through Oral Sex?

Oral sex is a 'low risk' activity for transmission of HIV. On saying that it depends on you and your partners oral and genital health. If you or your partner has bleeding gums, or recent dental treatment it is best to avoid oral sex or use a condom or dam. Oral sex can pass on other STi's such as Herpes or HPV (the virus that causes genital warts). If you or your partner have any STI's present it is best to avoid oral sex or use condoms and Dams.