A little dizziness and fever are mainly seen in the following causes: First, viral infection, patients can have dizziness, headache accompanied by fever and other symptoms in the early stage of viral infection, some patients also have nausea, vomiting, runny nose, sore throat and other symptoms. At this time, you can go to the hospital to do routine blood tests to find out whether there are changes in lymphocytes; second, a little dizziness and fever, ask the patient if there are still symptoms such as rotation of vision, diplopia, choking on water, weakness of the limbs, etc. You should also check whether there are positive signs of meningeal stimulation, and you need to go to the hospital to do a plain scan plus enhancement of cranial magnetic resonance, and you can also do a lumbar puncture to find out whether there are intracranial infections, such as tuberculosis meningitis or inflammation of the cerebellum or brainstem. In conclusion, a little dizziness and fever are mainly seen for the above two reasons, and patients can undergo targeted examinations.