Normal people want to know whether they have AIDS or not, they can be judged by the AIDS test, whether they have contact history and so on. 1. AIDS test: After being infected with HIV, 2~6 weeks later, you can do the test of virus antibody and nucleic acid, etc. If the result of the test is positive, you can basically judge that you are infected with the virus, and you need to be treated in time. 2. Whether there is a history of contact: HIV infection is generally transmitted through blood, sexual contact and vertical transmission from mother to child, and it is possible to be infected if you have the above high-risk behaviors. AIDS is still incurable, so prevention is very important. It is recommended to avoid high-risk behaviors in normal life to reduce the risk of infection.