Lung cancer is one of the most serious types of cancer to diagnose because it is usually difficult to detect until it has spread to other parts of the body. But it's also one of the most common cancers in the UK, the NHS warned. The signs of the disease tend to only come to light when the cancer has spread to the lungs. You could be at risk of lung cancer if your face or neck is swollen, he was revealed.
A swelling of the face could be a harbinger of lung cancer, said UK Bupa.
It is possible that the tumor puts pressure on the vein going from the head to the heart.
You may also be at risk of developing this disease if your fingertips become swollen.
This is called "finger knocking" and is linked to a small amount of oxygen in the blood.
"Lung cancer can often go unnoticed because many patients have no symptoms at first," said Bupa.
"The most common sign of this disease is a persistent cough that worsens with time, a blood cough or rust-colored sputum. [spit].
"There are other more unusual signs to watch for, including swelling in the face or neck, hoarseness and swollen fingertips. [commonly known as clubbing].
"Lung cancer is the leading cause of finger matting and begins with a softening of the nail bed and increasingly curved nails, which causes swelling of the fingers.
"Early diagnosis and access to treatment are essential for improving outcomes. It is therefore important to ask for help quickly if you are worried. "
You could also be at risk for lung cancer if you develop chest pain that worsens as a result of deep breathing.
Recurrent chest infections, fatigue and weight loss for no reason should also be reviewed by a doctor, he added.
You can reduce your risk of lung cancer by eating a low-fat, high-fiber diet and exercising regularly.
Everyone should aim to do at least 150 minutes of moderate intensity activity each week.
The outlook for lung cancer is not as good as for other types of cancer, as symptoms are usually only detected at an advanced stage.
About one in three patients live at least one year after diagnosis, while one in 20 lives another 10 years.
Every year, about 45,000 people in the United Kingdom are diagnosed with lung cancer.