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What is the definition of lumbar puncture?

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A lumbar puncture (also called a spinal tap) is the removal of spinal fluid (called the cerebrospinal fluid, or CSF) from the spinal canal; the fluid is withdrawn through a needle and examined in a laboratory. This diagnostic procedure is only done to rule out conditions that may be affecting the brain and spinal cord. This test is used only if the symptoms warrant it. It can cause a headache for a few hours afterward.

From: Migraine and Headache Glossary WebMD Medical Reference

SOURCES: Mayo Clinic. National Institute of Neurological Disorders and Stroke.

Reviewed by Nayana Ambardekar on February 13, 2019

SOURCES: Mayo Clinic. National Institute of Neurological Disorders and Stroke.

Reviewed by Nayana Ambardekar on February 13, 2019

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Is it common to get a headache if you have a stroke?

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