Once HIV is diagnosed, systematic and standardized antiretroviral therapy should be initiated. Once the infection is confirmed, it is crucial to start standardized antiretroviral treatment as early as possible, such as using antiviral drugs which can reduce the replication of HIV in the body; treatment can also be combined with protease inhibitors, nucleoside reverse transcriptase inhibitors, etc. By adhering to standardized long-term antiretroviral therapy, HIV can be effectively suppressed to undetectable levels, allowing immune function to gradually improve to near-normal status. This reduces the occurrence of opportunistic infections and gradually improves any that do occur, significantly reducing the incidence of certain tumors.