The susceptible groups of AIDS are: 1) male homosexuals, because homosexuals are more likely to be infected with AIDS because of anal sex, which breaks the mucous membrane of the rectum, and because male homosexuals generally have irregular sexual partners. 2) people with a promiscuous sex life. 3) drug addicts, because drug addicts who inject drugs intravenously often repeatedly use unsterilized or incompletely sterilized syringes and needles during the drug use process. The use of unsterilized or incompletely sterilized syringes and needles, including HIV-infected syringes, can lead to the spread of HIV among drug users.4. Patients with hemophilia.5. Patients who receive blood transfusions and often receive blood products.6.