Alzheimer&;s disease, also known as Alzheimer&;s disease, is a degenerative disease of the central nervous system. It is the most common type of senile dementia, with its insidious onset and chronic progression. Mainly manifested as neuropsychiatric symptoms such as progressive memory impairment, cognitive dysfunction, personality changes and language barriers, which seriously affect social, professional and life functions. . The etiology and pathogenesis of AD have not been clarified. The characteristic pathological changes are extracellular senile plaque formed by amyloid β-protein deposition, neurofibrillary tangles in nerve cells formed by tau protein hyperphosphorylation, neuron loss with glial cell proliferation, etc. It can be sent to the hospital for treatment.