A lumbar puncture (spinal tap) is a common test doctors use to check for signs of MS in your spinal fluid. But a lumbar puncture on its own isn’t enough to confirm an MS diagnosis. Diagnosing ...

A lumbar puncture (LP), which is also called a spinal ... A small amount of your CSF may be collected in test tubes to be sent to the lab. The doctor may measure the pressure of your CSF again ...