HIV is the Human Immunodeficiency Virus, usually 2-6 weeks after the occurrence of high-risk behavior can be completely ruled out HIV infection, it is recommended to consult a doctor for timely examination. With the HIV antibody test currently used in most medical institutions, HIV infection can be detected 2-6 weeks after high-risk behavior. If the test is negative, it is recommended that the test be repeated after 3 months, and if the result is still negative, HIV infection can be ruled out. If it is positive, it is necessary to be retested again under a doctor’s supervision to confirm HIV infection. If you have high-risk behaviors, you should go to a regular hospital or the CDC immediately to be examined and retested under the guidance of a doctor to make a clear diagnosis as soon as possible.