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Discography (also called a discogram) is a diagnostic procedure used to determine if one or more discs are the cause of back pain. The procedure involves pressurizing discs by injecting them with a sterile contrast dye to induce pain in the affected discs. Also, the spread of contrast helps to grade the degree of degeneration.

If one or two discs were diagnosed as the cause of your pain, a medicine called methylene blue may be offered at the same time. Although this injection is effective only in 1/3 of the cases, there are no additional side effects were documented in the literature.