Causes of a CSF Leak

A CSF leak occurs when a tear or hole forms in the membrane that surrounds the brain and spinal cord. This allows the cerebrospinal fluid (CSF), which supports and bathes the central nervous system, to seep out.

The following are proven causes of a CSF leak:

Sometimes no cause can be found or identified, but a leak is nonetheless suspected. This is known as a Spontaneous CSF Leak or Spontaneous Intracranial Hypotension (sometimes abbreviated to SIH).