What are the causes of spondylosis in younger adults?

Spondylosis means . Degenerative changes of the spine that occur primarily with age but can be accelerated by other factors such as smoking, deformity, obesity to name a few. Genetics can also play a role. Trauma has been shown to accelerate changes including whiplash. Disc surgery will accelerate the process as can a fusion leading to adjacent level changes.
Variable. Often seen in setting of previous trauma or ongoing injury (example paratroopers) can also be congenital.