Early diagnosis and treatment of AIDS is especially critical. If AIDS is detected early and antiviral drugs are taken, AIDS patients can obtain a normal life expectancy. According to some domestic data studies, it can be extended to 40 or 50 years. However, if AIDS is detected late and the drugs are applied late, the level of CD4 cells in the patient’s body is very low and the immune level is also very low, so even if the antiviral drugs are applied, it may not be able to reverse the disease. Patients are prone to opportunistic infections as well as malignant tumors, all of which will gradually lead to the patient’s failure and eventual death.