Generally after 2-4 weeks of HIV infection, some patients will develop HIV infection viremia and other such manifestations. Most patients have mild clinical symptoms, which usually do not require special treatment and will disappear in about 1-3 weeks. The main manifestations of patients are flu-like symptoms, such as fever, sore throat, rash, diarrhea, joint pain, swollen lymph nodes, etc. After the symptoms disappear, patients are in the asymptomatic period, during which they do not have any uncomfortable symptoms, that is, the latent period. Some patients will enter the AIDS stage after 6-8 years, and most of them are found due to opportunistic infections.