Why do some people also need lumbar puncture for headaches?

Lumbar puncture (hereinafter referred to as lumbar puncture) is the insertion of a needle between the third and fourth lumbar vertebrae of a patient. 2-3 ml of cerebrospinal fluid was withdrawn from the subarachnoid space for laboratory examination. The subarachnoid space is the space between the brain and spinal cord and the skull and spinal canal that surrounds them. The subarachnoid space of the brain and spinal cord communicates. Among them, the full liquid is cerebrospinal fluid, which is about 150 ml in total. It is continuously produced and absorbed every day, and the circulation is endless. Cerebrospinal fluid is produced by filtration of blood circulating through the villi-like lining of the ventricle (called choroids) and capillary endothelial cells in the brain. Therefore, the brain and spinal cord lesions. In particular, early inflammation can show abnormalities by examining the cerebrospinal fluid. Many diseases of the brain and spinal cord (inflammation, tumors, etc.) can affect the changes in the properties of cerebrospinal fluid. For example, the number of leukocytes in the cerebrospinal fluid of patients with various meningitis has a small and the same degree of increase, so that their appearance shows different changes. Among them, the number of cells in epidemic meningitis is the largest. The appearance of cerebrospinal fluid was cloudy and changed like rice soup; the contents of sugar and chloride in tuberculous meningitis and fungal cerebrospinal fluid were significantly reduced. The respective pathogenic bacteria can be found in the smear. It can be seen that lumbar puncture examination of cerebrospinal fluid is irreplaceable for any modern advanced examination for the diagnosis of certain brain and spinal cord lesions.

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