Distal median nerve dysfunction

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Central nervous system

Neuropathy - distal median nerve

• Sensation changes of the thumb and first 2 fingers
  • Numbness, decreased sensation
  • Tingling, burning sensation
  • Waking up at night with wrist or hand pain (may be severe)
• Weakness of the hand
  • Dropping things
  • Difficulty grasping objects

Examination may show decreased sensation in the thumb side (radial) fingers of the hand. There may be weakness of the thumb and difficulty using it to pinch.

Tests that reveal distal median nerve dysfunction may include:

• EMG (a recording of electrical activity in muscles)
• Nerve conduction tests
• Nerve biopsy (rarely needed)

Tests are guided by the suspected cause of the dysfunction as suggested by the patient's history, symptoms, and pattern of symptom development. They may include various blood tests, x-rays, imaging scans, or other tests and procedures.

Review Date: 08/07/2006
Reviewed By: Daniel Kantor, M.D., Director of the Comprehensive MS Center, Neuroscience Institute, University of Florida Health Science Center, Jacksonville, FL. Review provided by VeriMed Healthcare Network.