How To Treat Mild Disc Bulge At C5/C6 Level On Interior Thecal Sac?

hi doctor!im 34 yrs old n hav a problem with my right palm which gets numb in morning wen i wake up so consulted a neurosurgeon today.he adviced for mri which report says mild posterior disc bulge at c5/c6 level with identitation on interior thecal sac.i wud like to no wat causes this n can it b cured