Carpal Tunnel Syndrome

Overview

Carpal tunnel syndrome occurs when the median nerve is compressed as it passes through a narrow channel at the wrist. It commonly causes tingling, numbness, burning or clumsiness in the thumb, index, middle and thumb-side half of the ring finger. The little finger is usually spared.

It often develops gradually rather than from one clear injury. The pattern matters: symptoms that wake you at night, flare while driving or holding a phone, or improve briefly when you shake the hand are more suggestive than wrist pain alone.

What It Usually Feels Like

• Tingling, numbness or burning in the thumb, index and middle fingers
• Night symptoms or waking with a numb hand
• Symptoms during driving, phone use, reading or sustained gripping
• Hand clumsiness, dropping objects or reduced pinch strength
• Aching that can travel into the palm or forearm

Neck-related nerve irritation, diabetic neuropathy and other hand conditions can produce similar symptoms. Pain on the little-finger side is less typical of carpal tunnel syndrome.

What Can Contribute

• Repeated or sustained wrist bending, especially under gripping load
• Pregnancy-related swelling
• Diabetes, inflammatory arthritis or thyroid disease
• Previous wrist fracture or swelling around the wrist
• High-force or vibrating hand work

Keyboard use can aggravate symptoms for some people, but it does not automatically prove that typing caused the condition.

What Often Helps

Start With the Position That Bothers It Most

• Use a neutral wrist splint at night so the wrist is not held bent while sleeping
• Break up long phone, driving, tool or keyboard sessions before symptoms build
• Keep the wrist close to neutral during lifting and gripping where practical
• Reduce the heaviest or longest provoking tasks temporarily rather than stopping all hand use
• Ask a clinician or pharmacist about medication choices if symptom relief is needed

Nerve and tendon-gliding exercises may be appropriate for some people, but they should be gentle and should not reproduce persistent tingling. They are not a substitute for assessing progressive weakness or constant numbness.

How It Is Assessed

Clinicians use the symptom pattern and hand examination, sometimes supported by questionnaires or nerve-conduction testing. Imaging is not routinely needed for a typical case. Testing becomes more useful when the diagnosis is unclear, symptoms are severe, weakness is progressing or surgery is being considered.

When Procedures May Be Considered

If splinting and practical load changes do not settle symptoms, an injection can sometimes offer short-term relief. Surgery creates more room for the nerve and is generally considered when symptoms remain significant, testing shows substantial nerve involvement, or thumb-muscle wasting/constant numbness suggests the nerve is at risk.

Recovery and Return to Training

Do not judge recovery only by whether pain is gone. A better sign is that you can sleep, drive, type, grip and progressively load the hand without numbness increasing later that day or overnight. Resume bars, handlebars, climbing and heavy gripping in steps. Build duration before adding both duration and load together.

Seek Prompt Assessment

• Constant numbness rather than symptoms that come and go
• Progressive thumb weakness, loss of pinch, or visible thumb-muscle wasting
• New symptoms after a fracture, major swelling or a cut at the wrist
• Hand colour or temperature change, severe swelling or rapidly worsening pain
• Neck pain with spreading arm weakness, balance problems or symptoms in both arms/legs

Related Guidance

• Median nerve anatomy
• Finger tendon glides
• Gentle median nerve glide
• Forearm pronation and supination
• General elbow and forearm loading principles

References

1. American Academy of Orthopaedic Surgeons. "Carpal Tunnel Syndrome." https://orthoinfo.aaos.org/en/diseases--conditions/carpal-tunnel-syndrome/
2. AAOS. "Management of Carpal Tunnel Syndrome: Plain Language Summary." 2024. https://orthoinfo.aaos.org/globalassets/pdfs/plain-language-summary_carpal-tunnel-syndrome-2024.pdf

This is general education, not a diagnosis. Seek individual assessment for persistent numbness, weakness or loss of hand function.