Cerebrospinal fluid (CSF) is a clear, colorless liquid that surrounds the brain and spinal cord. It acts as a cushion, protecting these vital organs from injury and providing essential nutrients. CSF also helps remove waste products from the brain, maintaining a healthy environment for neurons and other cells. Produced in the choroid plexus of the brain, cerebrospinal fluid circulates through the ventricles and the subarachnoid space. This fluid plays a crucial role in maintaining intracranial pressure and supporting the overall function of the central nervous system. Regular analysis of CSF can help diagnose various medical conditions, including infections and neurological disorders.