Question: what does it mean when you leak spinal fluid?
Answer: A CSF leak results from a hole or tear in the dura, the outermost layer of the meninges. Causes of the hole or tear can include head injury and brain or sinus surgery. CSF leaks may also occur after lumbar puncture, also called a spinal tap or spinal anesthesia. Spontaneous CSF leaks can also occur for no known reason.