Condoms can prevent AIDS if used correctly. AIDS is mainly transmitted through sexual intercourse. If a person does not use a condom during sexual intercourse and has direct contact with sexual organs, the vaginal secretions of the woman or the semen or prostate fluid of the man will contain the AIDS virus, so it will be transmitted to the other person. If the patient uses a condom and chooses a good quality condom, the condom is used from the beginning to the end of the intercourse to avoid direct contact with the sexual organs. In this case, there will be no mutual infection of fluids, so it is possible to prevent the occurrence of AIDS. If the patient does not use condoms for contraception, there is a possibility that there will be female secretions and male prostate fluid coming out of direct contact with the sexual organs of the other person, and when they come into contact with each other’s sexual organs, they can be cross-infected through these secretions.