Doctors are pointing to a simple, non-invasive method called the Schamroth window test, where you create a small diamond shape with your fingers.
This test helps detect finger clubbing, a condition linked to several life-threatening illnesses. According to experts, if the diamond-shaped gap is missing when you press your fingernails together, it could be a red flag.
Changes like shiny skin around the nails, spongy nail beds, or downward-curving nails could be your body’s way of signaling trouble. But what exactly causes these changes—and what conditions are they connected to? Here’s where things get really interesting…
