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Symptomsback to top. The following symptoms are considered hallmarks of normal pressure hydrocephalus: Difficulty walking that's sometimes compared to the way a person walks on a boat, with the body bent forward, legs held wide apart and feet moving as if they're glued to the deck..
When hydrocephalus occurs in adults, CSF levels rise but the amount of pressure is usually normal. It still causes the brain to swell and can lead to impaired functioning. In adults, this condition usually results from conditions that prevent CSF from flowing. However, in some cases, there is no known cause.