Some of the most general symptoms of lung cancer are breathlessness, chest pains and a persistent cough. But most people mistake this with everyday colds and coughs and become lax in getting checked by a doctor. So more often than not, people get diagnosed with lung cancer at a later stage. This form of cancer is treatable if known in the first stage, which makes it very important to carefully notice lung cancer signs. When it reaches an advanced stage the symptoms, which are noticed, are hoarseness in the voice, a wheezing cough and chest pains that are intense in nature. So its better to get a check-up done when these signs first appear because it might help someone in getting treated.