There may be abnormalities in blood counts, but the diagnosis of AIDS should be based on epidemiologic history, clinical manifestations and laboratory tests. Generally speaking, during the incubation period of AIDS, there are no obvious abnormal changes in the routine blood tests, and when the disease develops into the AIDS stage, there may be a decrease in the lymphocyte count due to the impaired immune function. However, the results of routine blood tests are not very helpful in the diagnosis of AIDS. The diagnosis of AIDS should be combined with the history of unclean sex, blood transfusion, etc. Clinical manifestations such as enlarged lymph nodes, persistent fever, emaciation, and the combination of various opportunistic infections and tumors will help to diagnose AIDS. If combined with a positive HIV antibody screening test and a positive HIV confirmatory test, AIDS can be diagnosed. If you find yourself suffering from AIDS, go to the hospital in time for standardized treatment so as not to delay your condition.