Clubbing is when fingertips get larger, and nails slope downward. Clubbed fingers can be a sign of lung cancer, heart problems, cystic fibrosis, and other conditions. If you notice signs of nail ...

Clubbed nails have a distinctive curvature and softness. Clubbed nails, especially primary clubbing, can be harmless, but secondary clubbing may be a sign of lung or heart disease. Seeking medical ...

Most lung cancers don’t cause symptoms until they’ve spread. But when people do have symptoms, a persistent cough, unexpected weight loss, and shortness of breath are the most common ones. One unusual ...