AIDS is a chronic infectious disease caused by the human immunodeficiency virus HIV. Whether or not you can get AIDS from sex depends on whether or not the other person has AIDS or is infected with HIV. If both parties are healthy, you will not get AIDS from sex. On the contrary, if there is sexual contact with HIV-infected or AIDS patients, there is a risk of being infected. AIDS is spread mainly through sexual contact, blood, blood products, and mother-to-child transmission. The virus will invade into the body and cause disease through friction of sexual contact and through broken mucous membranes that are invisible to the naked eye. Therefore, it is important to pay attention to the prevention of AIDS, avoid high-risk sexual behavior, and use condoms to reduce the risk of infection.