Spontaneous Regression Of Herniated Nucleus Pulposus

Abstract

Spontaneous regression of herniated nucleus pulposus has not been previously documented. Reported here are 11 patients in whom there was unequivocal regression or disappearance of a herniated lumbar disc on follow-up computed tomography (CT) study. Two patients with herniated discs were without symptoms. In the 9 patients with symptoms, those attributed to the original herniation disappeared or were diminished in all cases. The mechanism of regression of a disc herniation is unknown. Whether or not regression of herniated disc is a frequent occurrence in patients who recover with conservative therapy should be investigated by more frequent use of follow-up CT scans.