Causes of Back Pain - Differential Diagnosis Algorithm Always assess for red flags. If no red flags, assess after 6 weeks Red Flags: bowel or bladder dysfunction, saddle paresthesia, constitutional symptoms, parasthesis, age >50, <18, IV drug use, neuromotor deficits, nocturnal pain, high energy trauma, past history of neoplasm • Fracture • Tumor/lnfection • Unresolved Radicular Symptoms • Cauda Equina Syndrome • Spondyloarthropathies • Myelopathic or Osteoarthritis #BackPain #Differential #Diagnosis #Algorithm #Causes