Kidney Stones, also known as renal calculi, are hard masses that separate urine from the urinary tract. These stones can occur anywhere in the urinary tract, including the kidneys, bladder, ureters and urethra.
This fluid is called the cerebrospinal fluid (CSF). When it leaks out, the pressure around the brain and spinal cord drops. Causes of leakage through the dura include: 1  Certain head, brain, or spinal surgeries.  Head injury.
Causes and Symptoms Of Spinal Fluid Leaks. Cerebrospinal fluid flows throughout our spinal canal and brain area, but if a hole develops in an area where fluid passes, leaks can occur. This can cause a shortage of fluid, which can lead to a number of painful symptoms.