Lung cancer is one of the most common cancers to be diagnosed in the UK, warned the NHS.
Around 45,000 people are diagnosed with lung cancer in the UK every year.
Signs of the disease only tend to reveal themselves once the cancer has spread through the lungs.
There are also a number of more unusual warning signs that could signal the deadly disease.
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Meanwhile, the disease may also lead to a symptom known as finger clubbing.
If the body isn’t receiving enough oxygen, as a direct result of lung cancer, it can lead to an enlargement of the fingertips and downward sloping of nails.
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“Lung cancer can often go unnoticed, as many patients experience no symptoms at first,” Bupa told Express Health.
“The most common sign of the condition is a persistent cough that gets worse over time, coughing up blood or rust-coloured sputum (spit).
“There are other, more unusual, signs to watch out for including swelling in the face or neck, hoarseness and swollen fingertips [commonly known as clubbing].
The symptom, known as jaundice, should be seen by a medical professional straight away.
You should speak to a doctor straight away if you’re worried about the warning signs of lung cancer.
The outlook for lung cancer isn’t as good as other types of cancer, as the symptoms are usually only spotted in its later stages.
About one in three patients live for at least a year after their diagnosis, while one in 20 live for another 10 years.
Source: Daily Express