Lower Back Pain: Causes, Symptoms, and Reliable Treatment Options Introduction to Low Back Pain The lumbar region, located under the ribcage, is a vital area of the body. Almost everyone encounter lower back pain at some point in life, making it a common reason for work absenteeism in the U.S.. https://www.diigo.com/item/note/a8c4q/v0s1?k=8f4a105af0553aff060dee1e30e5a5d3