The symptoms of neurological disorders are complex and varied, and there are different clinical symptoms depending on the disease, as follows: 1. Cerebrovascular diseases: Cerebrovascular diseases can cause focal neurological deficits, including slurred speech, swallowing disorders, central facial palsy, limb hemiparesis, sensory abnormalities, ataxia, etc. 2. Degenerative brain diseases: Degenerative brain diseases can cause a decline in cognitive function, including memory, orientation, calculation, executive ability and visual-spatial ability. These diseases include Alzheimer’s disease, Parkinson’s disease, frontotemporal dementia, etc. 3. Other brain diseases: Seizures, intracranial tumors, cerebral hemorrhage and other diseases can easily lead to impaired consciousness and cerebral edema, which can be life-threatening in severe cases. The patient’s life can be endangered.