Treatment of hydrocephalus must be specific to the patient's condition, as different cases of hydrocephalus require different treatment approaches. For some mild cases of hydrocephalus without obvious clinical symptoms, the focus is on observation or the use of internal medicine to improve cerebral circulation and neuroprotective medications. However, if symptoms emerge later and significantly affect daily life, shunt surgery from the cerebral ventricles to the abdominal cavity is performed for chronic hydrocephalus, aiming to alleviate the patient's suffering. In cases of acute hydrocephalus caused by cerebral hemorrhage or subarachnoid hemorrhage, treatment might involve the use of neuroendoscopy to create a ventriculostomy at the floor of the third ventricle or external ventricular drainage. Thus, treatment is determined based on the specific circumstances.