If you have lasting back pain and other related symptoms, you know how disruptive to your life it can be. Spinal decompression is a type of motorized traction that may help relieve back pain. Spinal decompression works by gently stretching the spine. That changes the force and position of the spine. This change takes pressure off the spinal discs, which are gel-like cushions between the bones in your spine, by creating negative pressure in the disc. As a result, bulging or herniated discs may retract, taking pressure off nerves and other structures in your spine.