The Full form of CSF is Cerebrospinal Fluid. CSF is a clear, colorless liquid found in your brain and spinal cord. The brain and spinal cord make up your central nervous system. Your central nervous system coordinates and controls everything you do including, organ function, muscle movement, and even complex thinking and planning. Cerebrospinal Fluid helps protect this system by acting like a cushion against any injury or sudden impact to the brain or spinal cord. CSF helps your central nervous system to work properly and also helps in removing waste products from the brain. A CSF analysis is a group of tests that look at your cerebrospinal fluid to help diagnose diseases and conditions that affect the brain and spinal cord. Other names of CSF are: Spinal Fluid Analysis, CSF Analysis. A CSF analysis may include tests to diagnose brain tumors, bleeding in the brain, Infectious diseases of the brain and spinal cord, and autoimmune disorders, such as Multiple Sclerosis (MS) and Guillain-Barré Syndrome. CSF tests for these disorders are called albumin protein and igG/albumin. You may need a CSF analysis if you have symptoms of an infection of the brain or spinal cord, or of an autoimmune disorder, such as multiple sclerosis (MS).