The cerebellum mainly plays a role in maintaining the balance and coordination of the body. When cerebellar atrophy occurs in the elderly, patients will suffer from ataxia, cerebellar dysarthria, cerebral nerve dysfunction and so on. 1. Ataxia: as the main symptom of cerebellar atrophy, patients mostly show unsteady gait, scissor-like or drunken gait, and may not be able to walk when the condition is serious. 2. Cerebellar dysarthria: such as slurred speech, mostly in the form of bardic speech or explosive speech. 3. Cerebral neurological dysfunction: such as dullness, dizziness, tremor of the hands and feet, amnesia, slow reaction time, and loss of muscle strength. 4. Others: patients may also have symptoms such as eyeballs swinging from side to side, loss of memory, facial and tongue paralysis, frequent urination, and sensory abnormalities. If the above symptoms occur, you should go to the hospital in a timely manner, after diagnosis, under the guidance of the doctor for treatment, the patient must not use, stop or change medication without authorization.