The typical symptom of AIDS is fever, but AIDS does not necessarily mean fever throughout the day or the whole day, for example, there is no fever in the asymptomatic stage of AIDS. Some patients show neuropsychiatric symptoms, such as memory loss, apathy, personality changes, headache, epilepsy and dementia, etc. Patients may also develop persistent generalized lymph node enlargement, which is commonly found in the groin, armpit and neck, and the enlarged lymph nodes can be more than 1cm in diameter, without pressure or adhesions, and can last for more than three months.