There is one tell-tale symptom which could lead to an early lung cancer diagnosis.
Lung cancer can spread more quickly than other forms of cancer with nearly 40,000 people being diagnosed with the disease every year. The danger with lung cancer is that symptoms often don't show up until after the dangerous cells have spread through the body, reported The Mirror.
While most people expect respiratory issues, such as shortness of breath, wheezing and a having persistent cough, to be linked to lung cancer, there is also one more obvious symptom - and it's in your fingers.