CSF WBC normal range

Cerebrospinal fluid examination shows that the normal range of white blood cells in adults is generally below 0.01×10^9/L, mainly lymphocytes. Cerebrospinal fluid is generally produced by choroid plexus secretion and exists in the ventricles and subarachnoid space. It is a colorless and transparent liquid that surrounds and supports the whole brain and spinal cord. It plays a certain protective role in trauma and plays a role in removing metabolites and inflammatory exudates. If the patient has a central nervous system infectious disease, such as meningitis, the white blood cell count may increase; if the patient has a brain tumor, especially a malignant tumor, the white blood cell count will also increase significantly.