The Finger Test that Detects Early Lung Cancer

By Tucson Functional Medicine on September 4, 2023 0 Comments

I have something of value to share with you that is a quick and easy method that could help you recognize a sign of early lung cancer. You can do it right in the comfort of your home—all you need are your fingers.

Medical professionals have relied on this simple test to screen for cancer for years.

It’s called the Schamroth window test.

So, here is the step-by-step method of the test:

Step 1: You have to use your index finger on both hands for more accuracy

Step 2: Put the nails of the index finger together and look for the hole between the cuticles.

Step 3: An average person will have a hole in the shape of a diamond.

Step 4: If no hole is formed between the cuticles, then it’s an early warning sign of lung cancer.



The Finger Test that Detects Early Lung Cancer


Simply by holding your fingernails together, you may spot a deformity called “finger clubbing.” (See Above)

That’s important because clubbing affects some folks with underlying lung or heart diseases, including bronchiectasis, emphysema, and cystic fibrosis.

But the most COMMON cause of finger clubbing is lung cancer or other respiratory diseases.

Some scientists believe it occurs when enhanced blood flow causes fluid to build up in the soft tissue of the fingertips. Other scientists think clubbing results from platelet-derived and vascular endothelial growth factors.

Now, if you have clubbed fingers, it doesn’t necessarily mean you have some lung or heart disease. Still, it is worth getting yourself evaluated by your physician for a respiratory or heart condition.

It is important to note that finger clubbing occurs in about 35 percent of patients with non-small cell lung cancer—the most common form. And it only occurs in 4 percent of people with small-cell lung cancer.

It’s also seen in patients with mesothelioma—a type of cancer that targets the lining of the lungs and chest wall.

You can find a qualified and certified functional medicine practitioner by going to 




Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: