Most of the red dots of AIDS are independent and appear as a single non-patch, which usually occurs in the acute stage of AIDS. In severe cases, these red dots may spread to the neck, chest, back, extremities, and even the face and genitals. The red dots of AIDS can appear 2-4 weeks after the initial HIV infection, but the presence of red dots on the skin alone cannot be used as a basis for confirming a diagnosis of AIDS. Patients who have recently had high-risk sex need to go to the hospital in time for further HIV antibody check. If the HIV antibody is positive, further HIV nucleic acid testing is needed to confirm the diagnosis. The main ways of HIV transmission include sexual contact, blood transmission and mother-to-child transmission. If HIV infection is confirmed, patients may not only show symptoms of red dots on the skin, but also other systemic pathologies, such as vomiting, diarrhea, blood in the stool, dizziness, cough and fever. Treatment of AIDS is mostly based on general treatment and medication, and the appropriate treatment is chosen according to the patient’s condition. The survival period of AIDS patients varies from 2 to 20 years, and some patients, after active treatment, have no significant difference in life expectancy from normal people.