What are the symptoms of early lung cancer

In recent years, the incidence of lung cancer increased significantly. However, the early symptoms of lung cancer and what does?
Implicit gradually lung cancer, and its early symptoms are not many, and some people even be aware of, but only occasionally found in the examination. Once there were significant symptoms, often in close late, when treatment has been very difficult, but the relatively higher mortality rates of patients. Therefore, for lung cancer, your in the diagnosis and early treatment.

Following the early symptoms and signs of early diagnosis of lung cancer have some help:

1, the sudden dry cough, cough for more than two weeks, and anti-inflammatory treatment does not work, or the original nature of chronic cough sudden change;

2, bloody sputum and sudden severe chest pain, and no obvious reason for the interpreter;

3, lung auscultation, there are limitations wheezing sound,笛音, rhonchus not cough and change;

4, repeatedly appear somewhere in the lung inflammation change;

5, can not be used to explain the limitations of the general bronchitis increased lung markings or limitations of emphysema;

6, long-term smoking, coughing change, and blood and sputum.