Clubbing is changes in the areas under and around the toenails and fingernails that occur with some disorders. The nails also show changes.
Common symptoms of clubbing:
Clubbing can develop quickly, often within weeks. It also can go away quickly when its cause is treated.
Lung cancer is the most common cause of clubbing. Clubbing often occurs in heart and lung diseases that reduce the amount of oxygen in the blood. These may include:
Other causes of clubbing:
If you notice clubbing, call your health care provider.
A person with clubbing often has symptoms of another condition. Diagnosing that condition is based on:
The provider may ask questions such as:
The following tests may be done:
There is no treatment for the clubbing itself. The cause of clubbing can be treated, however.
Davis JL, Murray JF. History and physical examinations. In: Broaddus VC, Mason RJ, Ernst MD, et al. Murray & Nadel's Textbook of Respiratory Medicine. 6th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 16.BACK TO TOP
Review Date: 4/21/2015
Reviewed By: Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.
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