can trigger the symptom, Mount Sinai experts say. In particular, this symptom can indicate"lung disorders in which the deep lung tissues become swollen and then scarred ," as well as"chronic lung infections that occur in people with bronchiectasis, cystic fibrosis, or lung abscess."can cause finger clubbing, including infectious endocarditis, an infection of the lining of the heart chambers and valves.
In some cases, it can also be a symptom of celiac disease, cirrhosis, dysentery, Graves disease, certain thyroid disorders, and certain other types of cancer, including that of the liver, gastrointestinal tract, or Hodgkin's lymphoma.Experts say there's one way to check for finger clubbing at home—by putting the fingernails of your two pointer fingers together and looking for a diamond-shaped gap between them.