Lower Back Pain: Key Factors, Warning Signs, And Effective Solutions Understanding Low Back Pain The lower back, located under the ribcage, is an essential part of the body. Almost everyone encounter lower back pain at some point in life, making it a leading cause of missed work in the U.S.. https://www.diigo.com/item/note/a8c4q/v0s1?k=8f4a105af0553aff060dee1e30e5a5d3