The main way to check for AIDS is through a blood test in the hospital, combined with personal medical history and clinical symptoms. 1. Hospital blood test: AIDS is an immunodeficiency caused by HIV (Human Immunodeficiency Virus) infection. Laboratory tests mainly include HIV antibody test, HIV nucleic acid qualitative and quantitative tests, which can clarify whether the body is infected with HIV. 2. Personal medical history: A history of unclean sex, unknown blood contact, or irregular medical operation, blood transfusion, etc., may be infected with AIDS. 3. Clinical symptoms: In the early stage of HIV infection, there may be fever, fatigue, sore throat and other generalized symptoms. If you suspect that you have AIDS, you need to go to a regular hospital for examination in time to avoid delaying your condition.