There is no such thing as the 6 signs of AIDS. In clinical practice, the diagnosis of AIDS is based on three main aspects: epidemiologic history, clinical manifestations and laboratory tests. 1. Epidemiological history: history of high-risk behaviors, including intravenous drug use, unsafe sex, or sexual partners who are HIV-positive, or sharing syringes with others. 2. Clinical manifestations: unexplained immunocompromised manifestations; or recent weight loss of more than 10% accompanied by irregular fever (>38.C℃) for more than 1 month; or recent weight loss of more than 10%. 3. Laboratory tests: (1) HIV antibody positivity; (2) HIV RNA, core protein antigen positivity; (3) CD4+ lymphocyte total <0.5×10'9/L, CD4+CD8+ ratio <1. If you suspect HIV infection, you must go to a regular hospital or CDC for a comprehensive examination under the guidance of a physician.