Patients with acute hydrocephalus can become life-threatening within half a month to a month if left untreated; however, patients with chronic hydrocephalus have a longer survival period even if they are not treated. In acute severe hydrocephalus, such as obstructive hydrocephalus, patients will rapidly develop cranial hypertension with paralysis, coma and tonic spasms, and if the pressure is not relieved in a short period of time, they will further develop brain herniation and become life-threatening, and generally live for half a month to a month. In chronic hydrocephalus patients, such as normal pressure hydrocephalus, patients will have symptoms such as unstable walking, urinary and fecal incontinence, cognitive dysfunction, etc. Survival time is longer, but quality of life is generally not high. Patients with hydrocephalus, whether acute or chronic, are recommended to be treated with surgery as early as possible. In acute hydrocephalus, surgical treatment can save the patient’s life by relieving the cause of increased cranial pressure; in chronic hydrocephalus, surgical treatment can delay the progression of cognitive dysfunction and improve the quality of survival.