From symptoms to the right diagnosis
Tingling in the thumb, index and middle fingers may fit carpal tunnel syndrome. Reduced sensation on the little-finger side may indicate ulnar nerve irritation. Trigger finger catches or locks, while Dupuytren can gradually pull a finger into a bent position.
The nature, duration and severity of symptoms determine which examination is needed. Clinical examination and focused tests may be sufficient; additional testing can help assess the location and severity of nerve compression.