Patients with AIDS and people living with HIV have in common that they are both infected with HIV. The difference is that both are in different periods of HIV infection and have different symptoms. AIDS patients have flu-like symptoms in the early stages and HIV-infected patients have no symptoms. I. Clinical symptoms are different when infected with HIV, the patient has not yet developed the disease, then called HIV-infected patients, patients may appear early cold-like symptoms, such as fever, sore throat, muscle aches in the limbs, rash and other performance, and later into the asymptomatic stage. AIDS patients, on the other hand, are infected with HIV and enter the onset stage, and also have a series of related symptoms, mainly manifested as follows: 1. fever, night sweats, diarrhea lasting more than one month, weight loss of more than 10%; lymph node enlargement greater than or equal to 1 cm in diameter, no pressure pain, no adhesions, lasting more than three months; some patients may also show neuropsychiatric symptoms; 2. infection, mainly Pneumocystis pneumonia, cryptococcal meningitis, Candida albicans esophagitis, thrush, hairy white spots, recurrent oral ulcers, herpes zoster, condyloma acuminata, fungal dermatitis and onychomycosis. Second, the period of HIV infection AIDS clinical staging is divided into three stages, patients who have not yet entered the AIDS period are called HIV-infected patients, AIDS patients are called AIDS patients: 1, acute infection period: 2-4 weeks after the virus first infected the body, infected people appear fever, rash and other symptoms, but some infected people are asymptomatic; 2, asymptomatic infection period: some of the acute infection period without performance The infected person in this stage has no obvious specific symptoms and signs, but is infectious; 3, AIDS stage: the infected person has developed various AIDS-related symptoms as well as serious opportunistic infections and tumors.