Lower Back Pain: Top Causes, Symptoms, and Proven Relief Strategies Introduction to Low Back Pain The lumbar region, located under the ribcage, is an essential part of the body. Almost everyone encounter discomfort in the lumbar region at some point in life, making it a leading cause of missed work https://www.diigo.com/item/note/a8c4q/v0s1?k=8f4a105af0553aff060dee1e30e5a5d3