Men are generally not infected with AIDS by oral sex. If a woman has AIDS, her mouth is broken, and the male genital organs are broken during oral sex, HIV may enter the body through the broken skin and there is a risk of HIV infection, but the chances of this situation are still very low. At present, the most important ways of transmission of AIDS are blood transmission, sexual contact transmission, vertical transmission from mother to child and medical transmission, such as transplantation of organs containing HIV, etc. The chance of transmission of oral sex is still very low.