The Schamroth window test is a simple, non-invasive finger check that can help detect early warning signs of serious health conditions like lung cancer and heart disease. By creating a small diamond-shaped gap between your fingernails, this test can indicate finger clubbing, a condition associated with various diseases.
Finger clubbing typically involves changes to the nails, such as warmth, shininess, increased curvature, and a larger, “clubbed” appearance. It often occurs due to long-term oxygen deprivation in the blood, which may be caused by lung cancer, chronic lung diseases, heart conditions, or liver and gastrointestinal diseases.
To perform the test, press your index fingers together and observe the gap. If no gap is visible, it may signal finger clubbing, prompting a visit to your doctor for further evaluation.
