- Cervical disc prolapse / slip disc : This is a condition in which there is a tear in the outer layer of the disc causing the jelly like material inside to come out and press upon the spinal cord and nerves. This causes shooting pain down the arm associated with feeling of pins and needles. In severe cases it might be associated with numbness and weakness of muscles supplied by that nerve. Surgery is indicated when symptoms fail to improve with conservative (medical) treatment or there is progressive (increasing) weakness of the muscles due to ongoing (worsening) nerve compression or myelopathy(damage) affecting balance of the body and fine movements of the hand.
- Spinal Stenosis : age related (or ongoing) degeneration (wear and tear) causes reduction in height of disc spaces and arthritic changes in the small joints (Uncovertebral joints) of the cervical spine. This results in compression of the exiting nerves causing a feeling of pins and needles in the arm and in severe cases may be associated with numbness and weakness of specific group of muscles.
- Sometimes for infections, traumatic injuries and tumors around the spine.