This condition occurs when the fibers of the annulus, the outer covering of the intervertebral disc, break or separate. In contrast to annular tears, annular fissures are typically wear-and-tear conditions that occur over time rather than trauma-induced conditions. If you have an annular fissure, there are ways in which you can improve your quality of life. An annular fissure is caused by changes in your spine caused by aging. Sometimes, it can cause back pain, but it usually does not cause symptoms.