Orthopaedics · Bones, joints and movement

Carpal tunnel syndrome

Understand compression of the median nerve at the wrist and ways to protect hand function.

Editorial publication · Medical review pending.

Understand

Carpal tunnel syndrome is compression of the median nerve in a narrow passage at the wrist.

Tingling, numbness, hand or forearm pain, night symptoms, thumb weakness and dropping objects may occur.

Swelling in the tunnel may be linked to pregnancy, repeated activities, previous injury, diabetes, arthritis or family factors.

Symptoms and examination of sensation, strength and the wrist are often enough to guide diagnosis.

Nerve conduction testing, ultrasound or MRI may be requested if the diagnosis is uncertain or before selected treatments.

Symptoms may fluctuate or progress; prolonged compression can cause persistent weakness and sensory loss.

A night splint and activity adjustment are often tried; steroid injection or surgical decompression may be discussed if symptoms persist or worsen.

Seek advice if symptoms do not settle, worsen, wake you at night or reduce hand strength and dexterity.

Sudden loss of hand strength or sensation, especially after injury or with other neurological signs, needs urgent assessment.

A procedure linked to a condition does not establish an indication for your individual situation.