Lower Back Pain: Causes, Symptoms, And Reliable Treatment Options What is Low Back Pain? The lumbar region, located under the ribcage, is an essential part of the body. Most individuals encounter lower back pain at some point in life, making it a common reason for work absenteeism in the U.S.. https://www.zupyak.com/p/4371763/t/lower-back-pain-top-causes-symptoms-and-proven-relief-strategies