People experience lower back pain for a variety of reasons. While one person may have it because of an injury, another might practice poor posture, and another may experience pain as they age. A great starting point is identifying the underlying cause of your pain. Pay close attention to common warning signs of poor posture, such as slouching while sitting down. Slouching will result in lower back pressure and make you feel dull pain over time. Also, spend some time reviewing past injuries that might have contributed to developing pain. Even old injuries can spur back pain years later.