The manifestations of HIV infection are different at different stages of the infection. In the early stage of infection, that is, the acute infection stage, the patient will have flu-like symptoms, such as fever, weakness, diarrhea, muscle pain in the limbs and swollen lymph nodes, which will disappear after a week or so. If the patient is in the asymptomatic stage of AIDS, there is no symptom and there is no way to judge based on the symptoms, so we need to do the relevant antibody test to clarify. If it is in the AIDS stage, it will have more clinical symptoms, there will be long-term low fever, chronic diarrhea, weight loss to various opportunistic infections and the occurrence of tumors.