Causes of nerve pain:
Neuropathy is damage to the nerve resulting from trauma, compression, diabetes, inflammation, or disease. The main causes of compression occur due to impingement between a muscle and bone. Common entrapments are carpal tunnel and sciatica.
Radiculopathy is much like neuropathy, but the difference is the location. Radiculopathy occurs at the spine and can be due to trauma, arthritis, joint degeneration, and disc injuries.