Hydrocephalus (hydrocephalus) is a disorder in which an excessive amount of cerebrospinal fluid results in increased pressure secondary to an increase in cranial pressure and ventricular enlargement due to an impairment in the process of cerebrospinal fluid production or circulation and absorption. Clinically, there are mainly obstructive hydrocephalus (obstruction within the ventricular system or between it and the subarachnoid space) and traffic hydrocephalus (non-obstructive hydrocephalus). The main causes of cerebrospinal fluid circulation disorders are: 1) congenital malformations, more commonly known as spina bifida, cerebrovascular malformations, etc.; 2) infections, such as septic meningitis or tuberculous meningitis that are not treated in a timely manner, often appearing as hydrocephalus; 3) hemorrhage, intracranial hemorrhage caused by fibrous hyperplasia can cause hydrocephalus; 4) tumors. Clinically, children mostly see enlarged head, enlarged fontanelle, tense fullness, splitting of cranial sutures, sunset eyes, vomiting, convulsions, language and motor disorders, mental retardation; adults mostly see intermittent headache, dizziness, nausea, vomiting vision loss, limb weakness, etc. The diagnosis is mainly based on the clinical manifestations and imaging examinations of patients. At present, the treatment of hydrocephalus mainly relies on surgical treatment – hydrocephalus shunt, including: lateral ventricle-cerebellar medullary pool shunt, third ventriculostomy, lateral ventricle-abdominal cavity, superior sagittal sinus, atrium, external jugular vein shunt, etc. Lateral ventriculo-abdominal shunt is the most widely used because it is less invasive and more effective.