There are usually no signs or symptoms of lung cancer in the early stages. Symptoms develop as the condition progresses.
The main symptoms of lung cancer include:
- a cough that does not go away after 3 weeks
 - a long-standing cough that gets worse
 - chest infections that keep coming back
 - coughing up blood
 - an ache or pain when breathing or coughing
 - persistent breathlessness
 - persistent tiredness or lack of energy
 - loss of appetite or unexplained weight loss
 
Less common symptoms of lung cancer 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
 - wheezing
 - a hoarse voice
 - swelling of your face or neck
 - persistent chest or shoulder pain
 
See a GP if you have any of the main symptoms of lung cancer or any of the less common symptoms.
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