Back Pain Causes / Differential Diagnosis Mnemonic

DISK MASSS

Degeneration: DJD, Osteoporosis, Spondylosis
Infection: UTI, PID, Potts, Osteo, Prostatitis Injury/Fracture,                            compression fracture
Spondylitis, Ankylosing, Spondyloarthropathies (Rheumatoid,                          Reiters, SLE.....)
Kidney stones/infarction-infection (Pyelonephritis /abscess)

Multiple Myeloma, - Metastasis from breast, prostate, lung,                              thyroid, kidney CA
Aneurysm - Abdominal
Slipped Disk, Spondylolisthesis, Spinal Stenosis
Strain, Scoliosis/lordosis 
Skin: Herpes Zoster