Cerebellar atrophy is a neuroimaging manifestation to be exact, and is commonly seen in certain genetic disorders and neurodegenerative diseases. For patients with microcephaly, common symptoms include ataxia, language dysfunction, eye movement disorders, muscle dysfunction, etc. 1. ataxia: decreased body coordination, symptoms such as unstable standing, swaying walking, slightly open legs or scissor step, as well as inability to maintain balance and irregular writing; 2. language dysfunction: mainly due to ataxia of the muscles of the mouth, lips, tongue, throat, etc. The symptoms are generally chant-like speech, slurred speech, slow speech, and impulsive pronunciation; 3. cerebellar ataxia. If imaging tests are done and cerebellar atrophy is found, with the above-mentioned symptoms, it is recommended to go to the neurology department in time and use medication for symptomatic treatment, and those with severe symptoms need to cooperate with rehabilitation training. In addition, it is necessary to quit smoking and drinking, to develop good dietary habits, and to avoid the use of drugs that are damaging to brain tissue to avoid aggravating the symptoms.