What is 'snuff box tenderness' indicative of?

'Snuff box tenderness' is a clinical sign that points towards a possible fracture of the scaphoid bone, which is located in the wrist. This area, known as the anatomical snuff box, is a triangular depression on the radial side of the wrist, and tenderness in this region is often evaluated during a physical examination for wrist injuries.

When someone experiences trauma to the wrist, particularly from a fall onto an outstretched hand, a fracture in the scaphoid bone can occur. This type of fracture may not be immediately visible on standard X-rays and can sometimes only be detected with further imaging or through the manifestation of symptoms such as swelling, pain, and notably, tenderness in the snuff box area.

Recognizing snuff box tenderness is critical for timely diagnosis and treatment, as scaphoid fractures can lead to complications like avascular necrosis due to its tenuous blood supply. Hence, identifying this sign is essential for proper management and prevention of long-term dysfunction in the wrist.