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Definition
By Mayo Clinic staffHydrocephalus occurs when excess fluid builds up in your brain, most often because of an obstruction preventing proper fluid drainage. The excess fluid can push fragile brain tissues up against the skull — causing brain damage and, if left untreated, even death.
Once known as "water on the brain," hydrocephalus is sometimes present at birth, although it may develop later. About one out of 500 children are born with the disorder. The outlook for people with hydrocephalus depends on how quickly the condition is diagnosed and whether any underlying disorders are present.
Symptoms
