hi,
The disc lesion is problem with intervertibral disk-which acts as
shock absorber.
-It may result in spondilitis. common causes are- disk prolapse pertaining to trauma,certain diseases like t.b.,due to old age etc.
-the prolapsed intervertibral disc presses on delicate
spinal cord,nerves causing back ache,other pressure symtoms
-releif may be by medications/traction/operation.
thanks