Hydrocephalus

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Causes

Obstruction causes CSF to build up in the brain. If the cause is congenital, symptoms such as an enlarged head may be present at birth. Acquired hydrocephalus can develop at any age as a result of head trauma or illness.


Congenital hydrocephalus

Congenital hydrocephalus occurs during fetal development and is present at birth. Causes include infections (e.g., cytomegalovirus [CMV], toxoplasmosis, rubella) and hemorrhaging or internal bleeding in the brain.

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