My neurologist wants to do another MRI on my back. He was surprised to learn that my pain management doctor has not ordered a more recent MRI. I have had bulging discs for 3 years. I had a CT scan 3 years ago for diagnosis. I had a MRI done a year and a half ago and it still showed bulging discs. I have recently completed Physical therapy with a small improvement on my pain level 25 percent maybe. My neurologist says since there was not an 80 to 90 percent improvement that he wants another MRI done? I just don't understand why. There is no surgery or anything they can do. How often do those with back problems have to get MRIs done? Is it normal to be rechecked once a year?