A white tongue is not indicative of AIDS. HIV infection of the body can be followed by a series of symptoms that can be indicative of AIDS. For example, fever, swollen lymph nodes, rash, etc. can occur 2-4 weeks after HIV infection. It can also be that after 6-8 years of incubation period, symptoms of a long lasting infection during the AIDS phase appear, such as recurrent fever, sudden weight loss, or the appearance of AIDS related tumors. A white tongue is not among these suggestive symptoms. The white tongue is a cold or superficial symptom in Chinese medicine, and it can occur in both AIDS patients and normal people. However, if you want to know if you have AIDS, you need to have a blood test for AIDS antibodies or other tests for HIV. It is not possible to tell by a white tongue that there is no indication.