The fever is good all the time dizziness, mainly seen in the following aspects: 1, the amount of fluid is not enough, because the fever will lose a lot of fluid, if this is not enough supplementation, it is easy to have a lack of body circulation, easy to have postural hypotension and dizziness. 2, the fever is good all the time dizziness, ask the patient whether there is a headache, nausea, want to vomit. Some patients are prone to intracranial infection after fever, mainly manifesting as dizziness, and need to do cranial magnetic resonance scanning plus enhancement, and also lumbar puncture examination to clarify the diagnosis. 3, fever has been dizzy, ask the patient about the site of inflammation. If the infection is caused by facial inflammation or ear inflammation, it is possible that the infection will invade the intracranial venous sinus causing venous sinus thrombosis, especially in the transverse sinus, lateral sinus is more common, the main manifestation is also dizziness, to do cranial magnetic resonance plus magnetic resonance venous imaging to clarify.