Cerebral hemorrhage is very dangerous, when the patient has a cerebral hemorrhage, of course, we should consult the doctor in time, and take appropriate treatment measures in time to minimize the damage as much as possible. In the clinic, although some patients with cerebral hemorrhage have been controlled, but may also leave some other problems, including hydrocephalus is a relatively common complication, we must know that hydrocephalus is not a small impact on human health, but also need to be actively dealt with and treated. What causes hydrocephalus in patients with cerebral hemorrhage? This is a lot of patients do not understand, generally speaking, cerebral hemorrhage patients will occur hydrocephalus has two reasons: First, because the hematoma of cerebral hemorrhage breaks into the ventricles of the brain and forms clots, which will lead to the emergence of obstruction, so that the cerebrospinal fluid can not be normally circulated and absorbed, resulting in the acute stage of obstructive hydrocephalus. In this case, the patient’s intracranial pressure will rise sharply, and there will be severe headache symptoms, accompanied by nausea and vomiting, etc., and also coma, or even brain hernia. Another reason is because the occurrence of cerebral hemorrhage is prone to cause bloody cerebrospinal fluid, which will lead to the blockage of arachnoid granules, and traffic hydrocephalus will occur in the later stage of the patient’s life. If the patient with cerebral hemorrhage develops traffic hydrocephalus in the later stage, the intracranial pressure will be increased chronically, and the course of the disease will last for a long time. Moreover, the patient may suffer from brain function damage, and may even suffer from epilepsy and mental decline, and so on.