Thanks for writing to HCM
Degenerative disease of spine is age related finding and disc protrusion
is associated with it in many cases due to laxity of annulus fibrosis
But, disc protrusion may also be due to trauma ,sneezing
and lifting heavy objects in awkward position and generally these people are prone to it due to prior weakness in disc anatomy.Disc prolapse
can compress the nerve roots.
Hope you have understand the things.