Many people, both young and old, are afflicted by chronic pain. Causes of chronic pain include past trauma or injury, illnesses like diabetes, shingles, cancer and other pain inducing diseases. There are several instances too that chronic pain can not be identified or traced to a particular cause. It is also possible for chronic pain to be caused by several things or by a combination of these things. The cause could be anything which is why researchers are continuously trying to find other possible factors that might be linked with chronic pain. By identifying more factors, chronic pain treatment may become more specific and accurate and pain management would become less complicated. The trouble with not knowing the possible or exact cause of chronic pain is that the pain remedy only works to relieve the pain itself. Since the underlying cause is not identified, chances are, the pain will keep on coming back.