Clubbing (Fingers & Toes) | Causes, Schamroth’s Sign, Associated Conditions, Treatment

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Clubbing is a clinical feature (physical sign) involving the bulbous enlargement of the distal ends of digits (fingers and/or toes). It is due to the swelling and proliferation of underlying connective tissue, and is ultimately leads to a change in the angulation of the nail resulting in Schamroth’s sign. The exact mechanism as to why this occurs is not entirely known; however, 4 mechanisms have been proposed. There are a variety of associated conditions that may cause clubbing including numerous respiratory and cardiac conditions. In this lesson, we discuss clubbing and physical sign in more detail, along with the 4 proposed mechanisms and a large list of associated conditions.

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REFERENCES:
"Nail Clubbing", StatPearls
https://www.ncbi.nlm.nih.gov/books/NBK539713/

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*Although I try my best to present accurate information, there may be mistakes in this video. If you do see any mistakes with information in this lesson, please comment and let me know.*