Dementia mainly has the following 2 kinds of symptoms: 1, cognitive impairment, recognition of the objective world, regardless of memory, orientation, understanding or calculation, and finally gradually decline, and finally all lost, which is a symptom; 2, mental symptoms, dementia every day cursing the actual cause of brain cell degeneration, a clinical manifestation of cognitive impairment. The most important thing is the presence of psychiatric symptoms, not only cursing and hitting, but also aggressive behavior, which makes the family unsettled. This is also the most important symptom that causes families to bring patients to the doctor. Family caregivers pay special attention to the following situations: 1, although the patient late stage of dementia, no memory, the subconscious mind still exists in part, the family to the patient to speak well part of the past, the patient will become calm; 2, must prevent the home sharps things, must not have an accident, to its self-harm or disability of the family are very painful; 3, caregivers also have to teach the patient to do universal things, such as The patient wears clothes that the nursing staff wash and clean and then let the patient fold by himself. Assign homework to the patient every day.