This is a procedure that is done that helps the doctors find out which disc is causing the pain in the spine. While many doctors use procedures like CTscans and MRIs discography is still used today for since it can give a better accurate idea of what might be going on with the structure of the vertebra. Your disc is a cushion between your vertebra. While is may be cushioned on the inside the outside is hard. When a discogram is done you are given a small type of local and an injection is put into the disc where an ink, or dye is inserted. This dye will show any leaks of the discs but it will also get soaked into your vertebra where they can see any chips or crack.You are then normally put into a CTScan where the dye shows up when there are minute cracks in the vertebra. When this is done it can cause more back pain but that pain normally is lowered after a few hours since the dye is gone. This procedure is normally done before any disc fusion is done and after you have gone through the normal medication and physical therapy and nothing else has worked.