The AIDS window period is related to different laboratory test methods. AIDS is a systemic disease caused by the infection of the body with the human immunodeficiency virus (HIV), causing various opportunistic infections and tumors. There is a window period after HIV infection, usually around 4-12 weeks for HIV antibody, 3 weeks for HIV antibody combined with antigen, and 1-4 weeks for HIV nucleic acid. Since the window period varies, it is recommended to test for HIV antibodies immediately, 4 weeks, 8 weeks, 12 weeks and 6 months after high-risk behavior. If you suspect HIV infection in your life, you should go to the hospital in time for examination and intervention as early as possible. You can test HIV nucleic acid, HIV antibody and HIV antigen in time, pay attention to regular diet and work and rest, avoid unsafe sex, and do not be overly nervous and anxious, and put your mind at ease.