Mild cerebral atrophy may not present any clinical symptoms, and many elderly people show some degree of cerebral atrophy during imaging examinations, which should not be overly worrying. If the cerebral atrophy is more pronounced, it mainly manifests as cognitive dysfunction, such as a decline in memory, reduced computational abilities, diminished executive functions, and possibly the inability to perform complex movements, such as being unable to brush one's teeth or dress oneself. In severe cases, individuals may experience personality changes, becoming irritable, easily angered, suspicious, and may even exhibit psychiatric symptoms, primarily hallucinations.