Back pain is a universal human experience, nearly everyone will experience back pain at some point in his or her life. Back pain is caused by injury to a muscle (strain) or ligament (sprain). The most common causes include bad posture, improper lifting, lack of regular exercise, fracture, ruptured disk, or arthritis.
The lower back starts just below the ribcage and is called the lumbar region. The pain felt here can be intense and is a leading cause of disability worldwide. Low back pain is one of the top causes of missed work and one of the most common reasons people visit the doctor.