When it comes to the elderly, people wryly refer to “old fogeys”, which is commonly thought of as a normal part of aging, or simply as irreversible dementia, not realizing that some dementia is a condition caused by normal cranial pressure hydrocephalus. The condition can be treated surgically and significantly improve the quality of life of the patient. When symptoms of dementia are detected, parents should be actively taken to seek early medical attention. Because dementia, dementia, and urinary incontinence are among the conditions caused by NPH, the lack of knowledge among the general public in this area has resulted in a low rate of consultation at present. What is normal cranial pressure hydrocephalus? What are the characteristics? Normal cranial pressure hydrocephalus (NPH) is a chronic hydrocephalus in adults, mostly in older adults over the age of 60. The disease usually starts slowly and progressively worsens. Memory loss, poor mood, indifference, and in severe cases, dementia; abnormal walking gait, small stride, unstable walking, and inability to lift the feet; increased frequency of urination, a sense of urgency, and in severe cases, urinary incontinence. How is it treated? Shunt implantation is a common procedure in neurosurgery, but its use in patients with Alzheimer’s disease has been neglected. The use of minimally invasive cerebrospinal fluid shunt surgery for NPH patients in the Alzheimer’s population can significantly improve dementia symptoms, restore consciousness, stop the babbling, and greatly improve the quality of life for themselves and their families. This surgical method has the advantages of less trauma, less disturbance to the abdominal cavity, less pain and faster recovery. It is recommended to choose an adjustable shunt for the procedure. A pressure-regulated shunt is the same size as a traditional fixed pressure shunt and is implanted in exactly the same way. If postoperative pressure selection is found to be inappropriate, it is adjusted by a special pressure regulator, eliminating the need for a second surgery. The pressure regulation process is performed outside the body and is painless for the patient.