Hydrocephalus is the buildup of fluid in cavities called ventricles deep within the brain. The excess fluid increases the size of the ventricles and puts pressure on the brain. Cerebrospinal fluid usually flows through the ventricles and bathes the brain and spinal column.
Hydrocephalus is the excessive accumulation of cerebrospinal fluid (CSF) within cavities of your brain called ventricles. This excess fluid causes your ventricles to widen, which puts harmful press on the tissues of your brain. Currently, there isn’t a cure for hydrocephalus, but it can be treated. What is hydrocephalus?