A simple test involving your fingernails may help detect early signs of lung cancer, according to reports. Pressing your fingernails together should reveal a tiny diamond-shaped window of light; if this gap is absent, it could indicate finger clubbing, a condition where the fingertips swell, potentially signalling lung cancer.
Finger clubbing develops in stages: the nail base softens, the skin near the nail bed becomes shiny, the nails curve more than usual, and finally the fingers enlarge due to fluid buildup. While not definitive, the absence of the diamond gap warrants a consultation with a GP.
Lung cancer patient Brian Gemmell, whose only symptom was finger clubbing, urged: "Go and see your doctor if you’ve got anything that you’re concerned about – that’s what a GP is for. Go as soon as you can." Early detection can lead to earlier treatment.
Dr Helen Piercy, a GP in West Lancashire, advised: "If you notice any signs or symptoms that concern you, see your GP. First phone for an appointment. You will be assessed, you will be invited in if you need to be seen face to face."
Common lung cancer symptoms include a persistent cough lasting three weeks or more, breathlessness, wheezing, frequent chest infections, coughing up blood, chest or shoulder pain, unexplained fatigue, hoarseness, and swelling in the face or neck. These signs do not automatically mean lung cancer, but it is best to consult a GP if concerned.
