During the incubation period of AIDS in the elderly, most patients have no obvious symptoms, and some patients may have swollen lymph nodes. The human body enters the acute phase about 2 to 4 weeks after HIV infection, and patients have symptoms such as fever, vomiting, diarrhea, arthralgia, skin rash, and enlarged lymph nodes. After these symptoms last for 1 to 3 weeks, the patient enters the asymptomatic phase, during which the patient usually has no clinical manifestations or only superficial lymph node enlargement. The asymptomatic period lasts from a few months to several years. There are also some patients who have no obvious acute symptoms after infection with the virus and enter the asymptomatic stage directly, or even have no symptoms before entering the AIDS stage. Regardless of whether or not the symptoms mentioned above occur, once the diagnosis is confirmed, it is necessary to consult a doctor as soon as possible for examination and follow the doctor’s instructions for standardized treatment.