Cerebrospinal fluid is the liquid around your brain and spinal cord. If a doctor thinks you have an illness that affects your nervous system, they might take a sample for testing.

The draining of cerebrospinal fluid is thought to be important for brain health. In conditions like Alzheimer’s disease, proteins such as amyloids can build up in the brain and may cause damage.

Related: Cerebrospinal fluid is a clear fluid that surrounds and cushions the brain and spinal cord. It circulates in the meninges, or the casing, that surrounds the brain.

Cerebrospinal fluid — the fluid surrounding the brain, spinal cord, and blood vessels in the brain — is an important part of the brain’s glymphatic system that enables the flow of cerebrospinal fluid ...

Digital biosensor for human cerebrospinal fluid detection with single-use sensing strips. Journal of Vacuum Science & Technology B, 2022; 40 (2): 023202 DOI: 10.1116/6.0001576 ...

A headache can be a sign of a cold—or a cerebrospinal fluid (CSF) leak if you've had a recent head injury or medical procedure. Learn more about CSF leaks.

Cerebrospinal fluid (CSF) surrounds and protects your brain and spinal cord. It’s held in place by a layer called the dura mater. A hole or a tear in the dura mater can lead to a CSF leak.

A subcutaneous cerebrospinal-fluid reservoir was used in 60 patients between 1962 and 1968. The total complication rate related to the reservoirs was 28 per cent. Major complications numbered six.

Cerebrospinal fluid can sometimes leak or collect in the brain without an identifiable cause, leading to symptoms that can be difficult to diagnose.