For us humans, the brain is the most important part of our body, which includes the telencephalon and the mesencephalon, with the telencephalon comprising the left and right cerebral hemispheres. The telencephalon is the main part of the higher nervous system of the vertebrate brain, consisting of the left and right hemispheres, and in humans it is the largest part of the brain and is the higher nerve center that controls movement, produces sensation and realizes higher brain functions. And when the brain is damaged, it causes clinically relevant disorders such as cerebral ataxia. The condition must be detected early, and if symptoms of suspected cerebral ataxia appear, a timely diagnosis is necessary to capture the best treatment period. So how can we make a good diagnosis in the early stage? Cerebral ataxia differs from cerebellar ataxia in that the frontal, temporal and occipital lobes of the brain are linked to the frontal and temporo-occipital bridge bundles, so ataxia can occur when the brain is damaged, but cerebral ataxia is usually less pronounced than cerebellar ataxia and is less likely to be accompanied by nystagmus. Cerebral ataxia is divided into the following three types: 1. Frontal ataxia: when it appears in the frontal lobe or frontal pontocerebellar tract lesion, the performance is the same as cerebellar ataxia, such as postural balance disorder, gait instability, backward or sideways leaning; in addition to contralateral limb ataxia, it is often accompanied by tendon reflex hyperactivity, increased muscle tone, positive pathological reflexes, as well as psychiatric symptoms, strong grip reflex and tonic plantar reflex, and other frontal lobe The ataxia is often accompanied by hyperactive tendon reflexes, high muscle tone, positive pathological reflexes, psychiatric symptoms, strong grip reflexes and tonic plantar reflexes. 2.Parietal ataxia: Ataxia of different degrees in the contralateral affected limbs, symptoms are obvious when eyes are closed, deep sensory impairment is not serious or transient; damage to the posterior part of the paracentral lobule on both sides can lead to sensory ataxia of both lower limbs and urinary and fecal disorders. 3.Temporal lobe ataxia: it is milder and can show transient balance disorder, which is not easily detected at an early stage.