Why do some people have a headache and do a lumbar puncture needle check

Lumbar puncture (hereinafter referred to as lumbar puncture) is to insert a needle between the third and fourth lumbar vertebrae of the patient. Take 2-3 ml of cerebrospinal fluid 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 communicate with each other. The fluid that is full is cerebrospinal fluid, which is about 150ml in total, which is constantly produced and absorbed every day, circulating endlessly, and balancing the movement and flexion. Cerebrospinal fluid is produced by the blood circulation through the villi-like lining of the ventricle (called choroid) and the capillary endothelial cells in the brain. Therefore, the brain and spinal cord disease. Especially early inflammation* can show abnormalities by examining the cerebrospinal fluid. Many diseases of the brain and spinal cord (inflammation, tumors, etc.) will affect the changes in the nature of the cerebrospinal fluid. For example, the number of white blood cells in the cerebrospinal fluid of patients with various meningitis has increased to the same extent, so that their appearance shows different changes. Among them, epidemic cerebrospinal meningitis has the largest number of cells. The appearance of cerebrospinal fluid was cloudy and changed like rice soup; the content of sugar and chloride in tuberculous meningitis and fungal cerebrospinal fluid was significantly reduced. The respective pathogens can be found in the smear. It can be seen that lumbar puncture examination of cerebrospinal fluid is irreplaceable by any modern advanced examination for the diagnosis of certain brain and spinal cord diseases.

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