Central Pain is a controversial topic that has strong believers and detractors. Most pain specialists believe that central pain exists, but disagree as to what causes it to occur. The idea is that pain can cause central nervous system augmentation either through chronic stimulation, severity of injury, location of injury, chemical alterations, burst activity in specific locations, sympathetic nervous system coupling, or loss of balance between ascending and descending pathways. Central pain is believed to be caused by a variety of injuries to the peripheral nerves, the Dorsal Root Ganglion, Spinal Cord, Spinothalamic Tract, Thalamus or other brain structures.