AIDS is an extremely dangerous infectious disease caused by infection with the AIDS virus. HIV is a virus that can attack the human immune system, and it takes CD4T lymphocytes, the most important cells in the human immune system, as its main target, destroying them in large numbers and causing the human body to lose its immune function. As a result, the human body is easy to be infected with various diseases and can develop malignant tumors with a high death rate. Persistent fever, weakness, night sweats, and persistent widespread generalized lymph node enlargement often occur, which can cause respiratory symptoms, gastrointestinal symptoms, and neurological symptoms in severe cases. In addition, it is also prone to cause damage to the skin and mucous membranes.