What is lumber puncture?

Lumber puncture, commonly known as a lumbar puncture or spinal tap, is a medical procedure used to collect cerebrospinal fluid (CSF) from the spinal canal. It involves inserting a thin needle into the lower back, specifically between the vertebrae in the lumbar region, to access the fluid surrounding the spinal cord. This procedure can help diagnose conditions such as infections, bleeding, or neurological disorders. Additionally, it may be used to administer medication or anesthesia.