Causes of Clubbing

Clubbing is symptomatic of chronic hypoxia. Peripheral circulation is diminished and oxygenation of vital organs and tissues is compromised.

When you check the fingers, look for clubbing, a possible sign of long-term hypoxia. A fingernail normally enters the skin at an angle of less than 180 degrees. When clubbing occurs, the angle is greater than or equal to 180 degrees.