hello, i am kulbhuson mishra from lucknow. i have back pain. so i went to a docter who advised to my for M.R.I. i take M.R.I. report it indicat the problem of L5-S1.i write all detail which mention in my report down---- Desiccating L5-S1 disc posterocentral and paracentral protrusion causing significant compression of thecal sac and bilateral exiting foramen/ far lateral recesses narrowing with possible entrapment of its passing nerve roots (L R). sir this is my report impression so please i want to know about all things of this. means what is cause of this. and what are the effect and how can i improve it .