Will lumbar puncture damage the spinal cord?

Generally not. Because the spinal cord has a certain length in the spinal canal. In adults, there is no spinal cord below the first lumbar vertebra, but a larger pool of cerebrospinal fluid in which many cauda equina nerves float. We often take 3 to 4 or 4 to 5 lumbar intervertebral spaces for lumbar puncture, which will not damage the spinal cord.

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