Back pain is a common medical condition that can be caused by a variety of factors. The term 'lumbago' is often used to refer to back pain, particularly in the lower back region. Lumbago is a seven-letter word that describes a type of back pain that is usually caused by muscle strain or sprain. It is often accompanied by stiffness and soreness in the lower back area. Treatment for lumbago typically involves rest, physical therapy, and medications to reduce inflammation and pain.