A CSF leak occurs when cerebrospinal fluid (CSF) escapes from the protective layer surrounding the brain and spinal cord. This is a serious condition that can cause headaches, seizures, or meningitis.

If you are having an unexplained low-pressure headache, it's possible that you may have a rare condition called a cerebrospinal fluid (CSF) leak. When you have a headache, you can often connect it ...