The survival time of untreated hydrocephalus must be treated specifically according to the specific situation. In the case of acute hydrocephalus, without active treatment, it is possible that the patient can only survive for 2-3 hours. The hydrocephalus will expand rapidly and the intracranial pressure will increase rapidly, which will cause brain herniation, respiratory and circulatory failure, thus causing death. In the case of chronic hydrocephalus, it is possible that 1 or 2 months have not caused the patient’s death, depending on their own general morphology and the specific severity of the hydrocephalus. Each hydrocephalus patients with different pressure determines the intracranial changes in the condition of the different, and even hydrocephalus may appear in the late stage of a certain tendency to improve, but often also not cured, more likely to cause the patient’s death. For hydrocephalus, or should be timely treatment, now the treatment concept is also good.