A common cause of back pain is injury to a muscle (strain) or ligament (sprain). Strains and sprains can occur for many reasons, including improper lifting, poor posture and lack of regular exercise. Being overweight might increase your risk of strains and sprains affecting your back.
Back pain can also result from arthritis and other age-related changes in your spine, from more-serious injuries, such as a vertebral fracture or ruptured disk, and from certain infections.
Causes shown here are commonly associated with this symptom. Work with your doctor or other health care professional for an accurate diagnosis.