There are no symptoms that must be present within a month of contracting AIDS because the clinical manifestations are not the same. It is mainly divided into acute stage, asymptomatic stage and AIDS stage, and the symptoms of each stage will be different. 1. Acute stage: basically in about 2~4 weeks after infection with AIDS, some patients will have fever, accompanied by nausea and vomiting, general malaise, headache, night sweats and diarrhea and other symptoms. 2. Asymptomatic stage: acute can enter the asymptomatic stage, in this stage lasts generally 6 to 8 years, in this stage is infectious, but no abnormal symptoms. 3. AIDS stage: A series of symptoms will appear when entering this stage. For example, there will be memory loss, personality changes, mental indifference, generalized lymph node swelling. It also affects the respiratory system, central nervous system, digestive system and so on. Symptoms of HIV infection are not all the same, but in any case, if you notice any abnormalities after high-risk behavior, you need to seek treatment from a specialist in a timely manner.