Hydrocephalus in the elderly, or normal cranial pressure hydrocephalus, is a common type of hydrocephalus in which imaging shows dilated ventricles and a lumbar puncture indicates that the pressure is within normal limits. Although this type of hydrocephalus does not have a large change in cerebrospinal fluid pressure, it will have significant adverse consequences for the patient himself once he suffers from it. What are the serious consequences of hydrocephalus in the elderly? 1, cognitive dysfunction: the initial symptoms are obvious amnesia, slow mental reaction, speech disorder, emotional indifference, and critical patients with mental disorders and dementia. It is worth noting that the dementia caused by normal cranial pressure hydrocephalus is reversible, early and active cooperation with doctors, the hope of the elderly to obtain recovery is still great. 2, gait disorder, patients frequently fall, gradually appear step base widening, gait dragging, limb stiffness, slow movement, lower limbs appear spastic gait. When the disease reaches its peak, the gait disorder and low motor function are very serious, and even all the autonomous activities are restricted, and daily life needs to be completed with the help of others, so the quality of life is greatly reduced. 3, urinary disorders: most often seen in urinary frequency, urinary urgency, urinary incontinence, usually occurs after the mental and gait disorders, as the disease deteriorates, the symptoms persist. In severe cases, the disease is combined with fecal incontinence. It is especially important to note that the onset of hydrocephalus does not distinguish between time, place and environment, and patients may not have the ability to control themselves during an attack, which can easily lead to an accident and cause more damage. Moreover, patients who are tormented by hydrocephalus for a long time are physically and mentally exhausted, depressed and lose their joy of life. Therefore, we must be vigilant enough in our daily life, and once we find similar symptoms in our elderly family, we must go to the hospital for detailed examination and do active and effective treatment. Shunt surgery is a commonly used treatment for hydrocephalus in China, which can easily lead to complications after surgery. The cerebrospinal fluid specialist technology developed in recent years has greatly reduced post-shunt infections, blocked tubes and other complications, and achieved good clinical results, truly achieving long-range drainage while effectively reducing possible post-operative complications.