What causes club fingers?

Club fingers, also known as digital clubbing or Hippocratic fingers, is a condition characterized by the enlargement and rounding of the fingertips and nailbeds. It can occur in both hands and feet.

Clubbing is often associated with underlying medical conditions, including:

- Lung diseases: Clubbing is commonly seen in people with chronic lung diseases such as interstitial lung disease, lung cancer, and cystic fibrosis.

- Heart diseases: Certain congenital heart defects, such as cyanotic heart disease, can lead to clubbing.

- Liver disease: Advanced liver diseases, such as cirrhosis, can also cause clubbing.

- Gastrointestinal diseases: Clubbing may be associated with inflammatory bowel diseases (IBD), such as Crohn's disease and ulcerative colitis.

- Infections: Some infections, including certain types of pneumonia and infective endocarditis, can cause temporary clubbing.

- Genetic disorders: Clubbing can be a feature of certain genetic syndromes, such as hereditary hemorrhagic telangiectasia (HHT) and familial pulmonary fibrosis.

The exact mechanism that leads to clubbing in these conditions is not fully understood. In most cases, it is believed to result from abnormal blood flow and tissue growth in the fingers and toes.

If you notice clubbing in your fingers, it is important to see a doctor for evaluation to determine the underlying cause and receive appropriate treatment for the associated medical condition.