What are nerve blocks and what to expect?

Diagnosis of nerve pain problems is usually accomplished by three main steps:
  • Listening to the patient’s history. Experienced nerve pain surgeons can often tell most of what they need to know from a description of when and how the pain started, where it is, and what it feels like. 
  • A simple physical examination. With knowledge of nerve anatomy, correlated with where the patient is experiencing pain, a straightforward exam in the office can usually narrow in on the diagnosis.
  • Nerve blocks. These are the best test for determining that:
  1. The pain is due to a nerve injury.
  2. Which nerve(s) are involved.
  3. Where on the course of the nerve(s) is the injury (and where the surgeon can intervene to alleviate the pain).