Hydrocephalus is too much fluid in the brain. The fluid is called cerebrospinal fluid (CSF). It is a clear fluid that normally surrounds both the spinal cord and the brain. It is also in the ventricular system of the brain. With hydrocephalus the ventricles, or spaces, become enlarged.
You may be born with hydrocephalus, or it may develop after an injury or illness.
Hydrocephalus fact sheet. National Institute of Neurological Disorders and Stroke website. Available at: http://www.ninds.nih.gov/disorders/hydrocephalus/detail_hydrocephalus.htm. Accessed October 2, 2017.
Last reviewed September 2018 by
EBSCO Medical Review Board
Rimas Lukas, MD
Last Updated: 9/30/2014
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