Carpal Tunnel Syndrome Demystified

Carpal tunnel syndrome (CTS) occurs when the median nerve, which runs through the narrow carpal tunnel in the wrist, becomes compressed (Figure 1, page 21).^1,2 This nerve provides sensation to the thumb, index, middle, and part of the ring fingers, while also controlling some muscles at the base of the thumb.¹ Common symptoms of CTS include numbness, tingling, or a “pins and needles” sensation, particularly in the thumb and fingers, along with pain or discomfort in the wrist, hand, or forearm. Symptoms tend to worsen at night or in the morning due to increased pressure on the median nerve from wrist flexion during sleep and fluid buildup in the wrists.³

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* References and figures can be found in the original article via the link above.