After HIV infection, there will be a long period of asymptomatic period, also known as the incubation period, the average incubation period is 10 years, the shortest is 2-3 years, the longest is up to 8-10 years. During the incubation period, HIV-infected patients will not have any obvious symptoms, and they are in good physical condition and their lives are not affected in any way. At this time, the body’s immune function is still in a relatively normal state, lymphocytes have dropped significantly, life will not be affected, and there is no obvious discomfort. After 8-10 years, AIDS will enter the morbid stage, which is manifested by an increase in opportunistic infections, causing tuberculosis, pneumonia, intestinal infections, megaloblastic infections, herpes, as well as lymphoma, Kaposi’s sarcoma and other tumors.