When a woman has AIDS, it is usually detected about 4-6 weeks after infection. AIDS is a very serious sexually transmitted disease (STD) caused by HIV infection, which mostly occurs after unclean sex, and both men and women are susceptible to infection. Due to the long incubation period of AIDS and its hidden nature, it is not easy to be detected at the early stage of HIV infection. In the case of HIV infection, it is usually detected about 4-6 weeks after infection. If there is unclean sex, highly suspected that the other party carries HIV, belonging to high-risk sexual behavior, it is recommended to go to the regular hospital as soon as possible in the window period to draw blood to do HIV antibody testing, but also can check HIV-RNA and P24 antigen, early screening for AIDS, early to rule out the risk of infection. Meanwhile, during the period of suspected HIV infection, sexual behavior should be prohibited to avoid spreading to others.