Patients with mild brain atrophy such as senile brain atrophy have their survival unaffected, and brain atrophy due to other pathological factors affects life expectancy for varying periods of time. Cerebral atrophy is a pathological change in brain tissue caused by various etiologies. Common causes include genetics, brain diseases, long-term seizures, alcoholism, carbon monoxide poisoning, and long-term malnutrition. Common clinical manifestations include dizziness and headache, unresponsiveness, slow movements, memory deficits and forgetfulness. With the gradual aggravation of brain atrophy, patients may show changes in personality and behavior, such as depression, reluctance to communicate actively, or impatience and irritability, as well as mental abnormalities such as suspicion of people, hallucinations and hallucinations; patients with advanced brain atrophy are completely unrecognizable and even bedridden for years. Generally speaking, there is variability in the survival period of patients depending on the severity of brain atrophy. Patients with mild cerebral atrophy, if they can be controlled from further progression after treatment, will generally not affect the normal survival period. However, if the patient’s condition progresses rapidly or if treatment is poor, it will have an impact on the patient’s life expectancy, but the exact length of time that the patient can live is related to the rate of progression of the patient’s condition and the presence of serious complications. For patients with cerebral atrophy, we recommend actively finding the cause of the atrophy and treating the cause in order to effectively prevent the rapid aggravation of cerebral atrophy.