Once a hydrocephalus drainage tube is placed in the body, it must be carried for life and cannot be removed unless the drainage tube becomes blocked or is not draining properly before it is removed and reinserted. Hydrocephalus is caused by various congenital or acquired factors that block the cerebrospinal fluid circulation pathway or obstruct the absorption of cerebrospinal fluid, causing the ventricular system to enlarge and accumulate in the ventricular system. Hydrocephalus is unlikely to resolve on its own, and ventriculoperitoneal shunts are required for significant hydrocephalus symptoms. The drainage tube after ventriculoperitoneal shunt needs to be carried for a long time for life, so that cerebrospinal fluid is continuously introduced into the abdominal cavity through the drainage tube and absorbed by the greater omentum. If the hydrocephalus is removed there will be a recurrence and the patient will have symptoms of hydrocephalus, such as headache, nausea, vomiting, etc. Therefore, cerebrospinal fluid drainage tubes cannot be removed and need to be carried for life.