Nail clubbing - Definition

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Nail clubbing, also known as hippocratic fingers, is a symptom that causes deformed fingernails. The nails become swollen and curved into the skin. This condition is caused by poor vascularization of the nail bed. It results from respiratory, cardiac, digestive, or liver disorder. Nail clubbing can be painful, and the underlying cause must be found in order to treat it, although the condition often persists even once vascularization has been improved.