Lung cancer is one of the deadliest types of cancer which occurs when cells within the lungs mutate and grow uncontrollably.

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The cancer is majorly caused by cigarette smoking since it is responsible for over 90% of diagnoses, according to the American Lung Association.

These are the early signs of Lung cancer you should know:

A long cough that maybe accompanied with blood or rusty spit and wheezing.Even though other respiratory illness causes a cough, it should never go past two weeks.A prolonged and lingering cough with bloody sputum should raise concern about lung tumor.

Difficult in laughing and coughing due to chest pain. Have you ever found no fun in laughing due to chest pain? Well that may be an early sign of lung cancer. The chest pain may also be felt while coughing making it difficult to cough.

Appetite loss and loss of weightUnrealistic and abnormal weight loss is often the first noticeable sign of cancer.The loss of appetite and unintentional weight loss greatly impact the quality of life hence easy to smell a rat.

Shortness of breath.This can be scary as you may feel like you are not getting enough air into your lungs even if the level of oxygen in the blood is normal.