Chronic back pain can result from an untreated or partially treated spine injury. The term chronic back pain refers to pain that persists for a long period of time after an injury. It is possible for you to develop chronic back pain as a result of any kind of injury or accident. Even small movements or positions can be difficult when you suffer from chronic back pain.   In some cases, back pain can cause you to avoid certain movements that may exacerbate the pain. As you avoid certain movements and motions over time, your mobility may decrease. Reduced mobility can also result in stiff, sore muscles and decreased range of motion.   Chronic back pain can also impair nerve function, especially if you do not treat it as soon as possible. Your entire nervous system can be affected by even the slightest injury such as a slipped disc or a misalignment in your spine.   Chronic back pain can also affect mood and even lead to depression over time. Back pain can become so frustrating when you can't do the things you used to enjoy due to your pain. Depression, anger, and sadness can result from back pain and its effect on your quality of life.