Risky sexual behavior for about three months can rule out HIV infection.
After the HIV virus enters the body, there will be a window period situation, it takes about four weeks to six weeks, in this time period the virus will enter the organism, although at this time the organism may not produce very obvious serological changes.
After the serologic examination, if the HIV is negative, it may not be detected during this period, but if the HIV is present in the body, the test may be positive after a period of time. The patient can go to a regular hospital after six weeks for an HIV antibody screening and AIDS nucleic acid test. The test should be done regularly within three months, after which the patient should not be infected.
If the patient is afraid of being infected with HIV after having high-risk sex, he or she can go to the hospital immediately for emergency drug blocking treatment, which can reduce the infection to a certain extent.