The increase in volume over-fills the limited space in your skull and puts pressure on your brain. One key symptom of increased intracranial pressure may be a bad headache. ICP is a medical emergency.

Idiopathic intracranial hypertension is caused by a buildup of cerebrospinal fluid (CSF) in the skull. Intracranial buildup of CSF can cause symptoms like pressure, pain, and vision changes over time.

Intracranial hypertension (IH) is a condition in which pressure builds in the fluid around the brain. Here’s what you should know about IH, the symptoms, and what treatments may help. Your brain ...