Lower Back Pain: Top Causes, Symptoms, And Proven Relief Strategies What is Low Back Pain? The lumbar region, located under the ribcage, is an essential part of the body. Almost everyone experience discomfort in the lumbar region at some point in life, making it a common reason for work absenteeism https://www.diigo.com/item/note/a8c4q/v0s1?k=8f4a105af0553aff060dee1e30e5a5d3