Medical experts say a simple 'finger test' could help detect lung cancer in its early stages, potentially saving lives.
While most people associate lung cancer with symptoms such as chest pain, shortness of breath, or wheezing, early warning signs can sometimes appear in the hands.
The test involves placing your fingernails together and pressing them against each other. According to the Roy Castle Lung Cancer Foundation, you should look for a small diamond-shaped gap between the nails. If no gap is visible, it may indicate finger clubbing, a condition found in approximately 35% of non-small cell lung cancer cases and 4% of small cell lung cancer patients.
The foundation emphasizes that the absence of the diamond-shaped gap does not automatically mean lung cancer, but it can be a warning sign. They advise: “If you think your nails are clubbed, speak to your doctor.”
Finger clubbing develops gradually, often starting at the base of the nail and progressing over time, resulting in nails that curve more than usual. Cancer Research UK notes that a softening of the nail bed and inflammation of surrounding skin are also key indicators.
The condition, also called digital clubbing or Hippocratic fingers, can appear in people with heart or lung problems, not just cancer. Early recognition and consultation with a healthcare professional are crucial for timely diagnosis and treatment.
