The incubation period of HIV can be detected. The so-called incubation period is when a person is infected with HIV, but does not have any clinical symptoms yet. For HIV infection, it mainly refers to the asymptomatic stage, such patients do not have any symptoms, but the HIV antibody check is positive, or the HIV check is also positive. So for such patients, only HIV antibodies need to be checked and if they are positive, further confirmatory tests can be done. For HIV-infected patients in the latent stage, they need to be reviewed periodically, and once the CD4 cells drop below 500/ml, or if there is a combination of symptoms such as opportunistic infections, they need timely antiviral treatment.