Less common symptoms may include:
- Changes in the appearance of your fingers, such as becoming more curved or Their ends becoming larger (this is known as finger clubbing)
- Difficulty swallowing (dysphagia) or pain when swallowing
- A hoarse voice
- Swelling of your face or neck
- Persistent chest or shoulder pain
Lung cancer causes
The exact cause of lung cancer is unknown, but there’re a number of factors that can increase a person’s risk of developing the disease.
Smoking is one of the main risk factors, but can be controlled by quitting smoking.
Mayo Clinic explains: “Your risk of lung cancer increases with the number of cigarettes you smoke each day and the number of years you have smoked.
“Quitting at any age can significantly lower your risk of developing lung cancer.”