In the later stages of dementia, patients exhibit a variety of clinical symptoms. For example, they may experience visuospatial dysfunction, primarily manifesting as getting easily lost, even within their own home, unable to find their bedroom. There may also be psychiatric symptoms, such as visual and auditory hallucinations, alongside significant changes in personality and behavior, making nursing care especially important. In caring for dementia patients, it is crucial to prevent the elderly from getting lost by placing a card in their clothing pockets, which should include a phone number and home address to prevent any accidents. Additionally, when elderly individuals are at home alone, it is important to ensure the kitchen door is kept closed to prevent them from entering the kitchen and accidentally turning on the gas stove and forgetting to turn it off, thereby avoiding unnecessary risks. If dementia patients exhibit psychiatric symptoms, it is essential to comfort them, and if necessary, consult a psychiatrist to administer appropriate antipsychotic medications. In the later stages of dementia, patients may become bedridden; at this point, it is important to regularly turn and pat their back to prevent lung infections and provide sufficient nutrition to avoid complications from malnutrition.