Testing for AIDS should be done after the window period because the immune system is not stable enough to detect the relevant indicators. Most hospitals in China test for AIDS antibodies, which can be detected in the blood about 3-4 weeks after infection. Therefore, if you want to be tested for AIDS, you can go to the hospital 4 weeks after the high-risk behavior and have your blood tested for HIV antibodies for a definite diagnosis. Once the diagnosis is confirmed, the viral load and CD4 and T-lymphocyte counts should be checked to assess whether the patient is currently in the AIDS stage and to provide timely treatment with antiviral drugs.