During different stages of HIV infection, there are some varying clinical symptoms.

The latency period of HIV, also known as the asymptomatic period, generally has no obvious symptoms, though some individuals may only show enlargement of lymph nodes. During the acute infection stage of HIV, symptoms such as generalized lymph node enlargement, fever, rash, and cough are common. In the late stages of HIV, due to severe deficiencies in immune function, there is a high susceptibility to a variety of opportunistic infections, which can lead to unexplained spontaneous fever, diarrhea, cough, and other symptoms that must be addressed according to the specific circumstances.