Usually, because lung cancer symptoms do not occur in the early stage of disease, treatment will be a huge problem, especially when the detection of metastasis of cancer occurs when cancer cells have high school or developed in other body organs. Research work has been devoted to learn the first symptoms of lung cancer. Extensive research works conducted at Mesothelioma research clinics have uncovered some symptoms of lung cancer closely linked with the disease.
The three main symptoms of lung cancer that should not be ignored are shortness of breath, pain when breathing or coughing, and existence of a persistent cough, especially if accompanied by expectoration of sputum streaked with blood. Moreover, loss of appetite, fatigue, unusual weight loss are three symptoms that are indicative of lung cancer. The site also deals with symptoms that can indicate and help identify the formulation of the preliminary stages of the disease (though hard to detect) so that appropriate action can be taken as soon as possible.