Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Lumbar
Medically reviewed by Min Clinic Staff | Updated: January 2026
Lumbar: Referring to the five lumbar vertebrae, the disks below them, and the corresponding area of the lower back. The lumbar vertebrae and their disks are situated below the thoracic vertebrae and above the sacral vertebrae in the spinal column and are surrounded by soft tissues, including ligaments and large muscles.