What are symptoms for lung cancer?

Many symptoms. Lung cancer can present with many symptoms, including shortness of breath, cough, bloody sputum, weight loss, fatigue, or no symptoms at all, especially in the early stages of the cancer.
Often limited. Unfortunately, early lung cancer is often asymptomatic. The following link may assist you in the possible symptoms: http://goo.Gl/vvhhy.
Variable. In early stage patients may be without any significant symptoms- -perhaps some coughs- and sometimes is found accidentally . At a later stage symptoms would be more significant -that will include- persistent cough, shortness of breath, chest pain associated with breathing ( deep breathing for instance), coughing up blood, weight loss, decrease apetite etc.
Depends. Early stage lung cancer can be asymptomatic or no symptoms. Often it is found incidentally by chest xray or chest ct scan. Ct scan screening for high risk patients has shown to be effective. Larger cancers can cause symptoms such as bleeding (hemoptysis), wheezing, weight loss and other symptoms.
Several. Persistent cough, wheezing, coughing up blood, unintentional weight loss, etc...But the majority of lung cancer is without symptoms. For more info: http://bit.Ly/ygfoko.