Is a lumbar puncture needed to diagnose ms?

Yes.: The test is one of many used to diagnose ms. Even mris of the brain are not specific enough. The diagnosis is a compellation of tests including the lp, x-rays, and clinical presentation.

Sometimes: In many cases, the history, examination, and radiological findings are enough to make a diagnosis of ms. In more borderline cases, however, a lumbar puncture can provide a definitive diagnosis. This is very important, as you do not want to put someone on a potentially toxic medication for a disease they might not have!

Not usually: These days, MRI films are typically sufficient but LP may be used if diagnosis is unclear