When a vertebrae becomes misaligned or fixed, this is referred to in the chiropractic profession as a subluxation. Subluxations can be caused by a wide range of issues ranging from a minor slip or bump to a car accident or any sudden trauma. When a vertebrae is subluxated, it begins to put pressure on nerves, blood vessels and everything around it. This pressure comes with a price. The subluxation interrupts the natural pathways that the messages sent from the brain need to be clear in order to be completed properly.