What does Schmorl's node mean?

Schmorl's nodes, also known as Schmorl’s herniations, occur when the cartilaginous endplate of the vertebral body ruptures, allowing the nucleus pulposus to protrude through the fissure into the vertebral body, forming a semicircular defect within the vertebra.

Schmorl's nodes represent a special type of lumbar disc herniation. On imaging studies, they typically do not present with significant findings and usually require no specific treatment. However, in a minority of cases, Schmorl's nodes may exert pressure on the posterior margin of the vertebra, irritating the nearby spinal nerves and causing radiating pain in the lower back or lower limbs. In such instances, medical intervention is necessary.

Conservative management is generally recommended, including bed rest, wearing a lumbar support brace, and avoiding bending or heavy lifting. Under a physician's guidance, medications such as diclofenac sodium delayed-release enteric-coated capsules or celecoxib capsules can be taken to reduce local aseptic inflammation and relieve pain. Additionally, mecobalamin may be used to support nerve health. Other treatments such as lumbar traction and physical therapy can help alleviate nerve inflammation and reduce nerve edema. If symptoms persist despite long-term conservative treatment, surgical options—including laminectomy for spinal decompression or removal of the herniated disc material—may be considered to relieve nerve compression and associated discomfort.