What causes thickening of nerve roots?

Thickening of nerve roots, often referred to as nerve root hypertrophy, can be caused by various factors including inflammation, compression, or injury to the nerve roots. Conditions such as spinal stenosis, herniated discs, or Arthritis can lead to chronic irritation and swelling of the nerve roots. Additionally, systemic diseases like Diabetes or certain autoimmune disorders can contribute to changes in nerve root structure. This thickening may result in pain, numbness, or weakness depending on the affected nerve roots.