Clubbing is a thickening of the flesh under the toenails and fingernails. The nail curves downward, similar to the shape of the round part of an upside-down spoon.
Clubbing occurs with a wide number of diseases. It is most often found in heart and lung diseases that cause a lower-than-normal amount of oxygen in the blood.
Clubbing may also be due to lung cancer, and diseases of the liver and gastrointestinal tract.
Clubbing may also occur in...Read more
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