Hello and thank you for your question,
I am sorry you have been waiting so long to receive an answer. It seems that your question was placed in a wrong category and only recently moved to the health category.
Early lung cancer may not have any symptoms at all which is why it is difficult to diagnose in early stages. When lung cancer does have symptoms, it usually causes cough, shortness of breath, coughing up blood and weight loss. If lung cancer has spread to other organs, (for example bones), it can cause bone pain or joint pain.
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