Herniated to bulging disc means that the nucleus pulposus protrudes backward to a smaller extent, but both herniation and bulging may compress the spinal cord and nerve roots, and the improvement needs to be judged according to whether there is any reduction in the symptoms of lumbar pain, leg pain, and numbness, etc., and the reduction of symptoms may be an improvement. Herniated discs are caused by long-term weight-bearing exercise, age and other factors, leading to disc degeneration, the nucleus pulposus protrudes backward, which can compress the spinal cord and nerve roots and cause corresponding symptoms, such as low back pain, radiating pain in the lower limbs, numbness and other symptoms. Herniated and bulging discs are descriptions of the degree of protrusion of the nucleus pulposus; bulging discs have a protrusion of the nucleus pulposus within 3 millimeters, while herniated discs have a protrusion of the nucleus pulposus of 3 to 5 millimeters, which is more often accompanied by rupture of the annulus fibrosus; the discs have gone from protruding to bulging to illustrate that the protruding nucleus pulposus has become smaller in degree. Through conservative treatment, exercise and other ways, the degree of disc herniation can be somewhat reduced, but herniation and bulging may compress the spinal cord and nerve roots, so whether the improvement should be judged according to the symptoms, if the back pain, leg pain, numbness and other symptoms to reduce is better. Suffering from lumbar disc herniation should go to the hospital in time, and follow the doctor’s instructions for standardized treatment, so as not to delay the condition.