Blue Fingernails

Ever wonder what those strange marks or color on your fingernails mean? We look into 14 common health-related conditions that show symptoms in our fingernails.

Lung diseases can vary in severity, but they should all be taken seriously. They include asthma, Chronic Obstructive Pulmonary Disease (COPD), and lung cancer. However, even if you have these telltale symptoms, try to breathe easy until you see your physician for a proper diagnosis.