There are no specific food contraindications for hydrocephalus patients, and there is no evidence that a particular food can cure hydrocephalus, so hydrocephalus patients can have a normal diet. There are many causes of hydrocephalus, such as third ventricle tumor, fourth ventricle tumor, subarachnoid hemorrhage, and meningitis. Hydrocephalus can be prevented in advance by controlling the risk factors that trigger these diseases. For example, subarachnoid hemorrhage is mostly caused by high blood pressure that leads to aneurysm rupture, so patients can eat a low-salt diet to prevent high blood pressure, which will help reduce the occurrence of subarachnoid hemorrhage. Hydrocephalus patients can eat more nutritious and balanced food to make their body in an optimal state, which is conducive to recovery. For example, they can eat foods rich in vitamins, minerals and trace elements. If swallowing disorder occurs, patients need to eat through nasal feeding tube.