A simple test you can perform at home with your fingers could provide a sign of lung cancer. Almost 40,000 people a year are diagnosed with the condition, but many patients are unaware of some of the early signs, reports The Mirror.
Some of the common symptoms include shortness of breath, wheezing and a persistent cough with blood or phlegm. But there is also a sign that can appear in your fingernails.
If you can't see a diamond-shaped gap when you press two fingernails together, you could have finger clubbing, when the ends of your fingers swell up - and this could be a sign of lung cancer.
