The causes of back pain can be:
Structural
- Mechanical or non-specific
- Facet joint arthritis or dysfunction
- Prolapsed intervertebral disc
- Annular tear of intervertebral disc
- Spondylolysis or spondylolisthesis
- Spinal stenosis
Neoplasm
Primary or secondary including multiple myeloma
Referred pain to spine from:
- Major viscera
- Retroperitoneal structures
- Aorta
- Hip
Infection
- Discitis
- Osteomyelitis
- Paraspinal abscess
Inflammation
- Spondyloarthropathies
- Sacroiliitis or sacroiliac dysfunction
Metabolic
- Osteoporotic vertebral collapse
- Paget’s disease
- Osteomalacea
- Hyperparathyroidism