If a 17-year-old person with AIDS has reached the AIDS stage, the average survival time without treatment is 12-18 months. AIDS is caused by infection with the human immunodeficiency virus (HIV). There are three main stages from HIV infection to the development of AIDS: acute HIV infection, asymptomatic HIV infection, and AIDS. If already in the AIDS stage, patients can live 12-18 months without treatment; if treated aggressively, the survival period can be extended, in some cases by at least 30 years. If one is only infected with HIV and is in the asymptomatic HIV infection stage, it can last from a few months to 20 years, with an average of 8-10 years, and will progress to the AIDS stage. Therefore, patients need to identify which stage they are in and treat them aggressively. The main treatment methods are anti-HIV therapy, immunomodulatory therapy and other symptomatic treatments. The main treatments are anti-HIV therapy, immunomodulatory therapy, and other symptomatic treatments. If you find out that you have AIDS, you can extend your survival to a certain extent with timely treatment.