How serious is this Here are the final impressions from Radiology re: MRI: Multilevel degenerative changes of the lumbar spine, as above, superimposed on mild generalized narrowing of the lumbar spinal canal due to congenitally short pedicles. Neural foraminal stenosis is mild bilaterally at L3-4, moderate bilaterally at L4-5, and severe bilaterally at L5-S1. Basically this means that your disc disease is severe at L5-S1 , moderate at L4-5, and mild at L3-4, which is what we discussed. You will need to followup with physical medicine to determine what the next treatment plan is, which may include epidural steroids, acupuncture, therapy or surgery. I wish you well with this.