Non-surgical spinal decompression is a type of gentle spinal cord traction that may help relieve back pain. Spinal decompression works by gently stretching the spine and vertebral discs. That changes the force and position of the spinal structure This change takes pressure off the spinal disks, which are gel-like cushions between the bones in your spine, by creating negative pressure in the disc. As a result, bulging or herniated disks may retract, taking pressure off nerves and other structures in your spine. This in turn, helps promote movement of water, oxygen, and nutrient-rich fluids into the disks so they can heal.