Phalen's test
Holding the wrists flexed with the backs of the hands together for about a minute and noting whether it reproduces tingling supports a diagnosis of carpal tunnel syndrome.
Assessment of the wrist and hand typically combines a history of repetitive tasks or trauma with observation of swelling, deformity, and active range of motion.
Because nerve compression is common in this region, several tests specifically aim to reproduce or provoke nerve-related symptoms, alongside tests targeting specific tendons and ligaments.
Assessment tests
Tinel's sign at the wrist
Tapping over the median nerve at the wrist that reproduces tingling in the thumb, index, and middle fingers suggests nerve irritation at that level.
Finkelstein's test
Making a fist around the thumb and bending the wrist toward the little finger reproduces pain at the thumb side of the wrist in this condition.
Grip and pinch strength testing
Standardized dynamometer measurements of grip and pinch strength provide an objective baseline and a way to track progress over time.
Wrist ligament stress tests
Specific stress maneuvers applied to individual wrist ligaments help identify instability following a sprain or fall.
Red flags
These warrant prompt clinical review rather than unsupervised exercise progression.
Deformity or inability to move after trauma
A visible deformity or an inability to move the wrist or fingers following a fall or direct injury raises concern for fracture and warrants urgent evaluation.
Progressive weakness or muscle wasting
Worsening weakness or visible loss of muscle bulk at the base of the thumb can indicate significant, longstanding nerve compression.
Signs of infection
Increasing redness, warmth, and swelling, particularly with fever, raise concern for infection in the hand and require prompt medical attention.
Sudden, complete loss of sensation
A sudden and complete loss of sensation in the hand, especially after trauma, should be evaluated urgently to rule out significant nerve or vascular injury.
This combination of provocative nerve tests, strength measures, and trauma screening allows clinicians to efficiently distinguish between the region's common nerve, tendon, and joint conditions.
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