What are the symptoms of lung cancer? These four common symptoms of lung cancer are diagnosed

The early symptoms of lung cancer are generally not obvious, but in fact, if there is a lesion in the lungs, coughing is the main manifestation, and this is also true for lung cancer. Of course, the characteristics of coughing are different for different conditions. Middle-aged and elderly people should be vigilant when they have a long-term cough. The following is an introduction to the symptoms of lung cancer:

First, fever is a typical early symptom of lung cancer, usually caused by obstructive pneumonia or cancer toxins.

Second, shortness of breath is also an early symptom of lung cancer. Pneumonia caused by tumor obstruction, atelectasis, malignant pleural effusion, diffuse alveolar lesions, etc. can all cause early symptoms of lung cancer.

Third, cough is also a typical early symptom of lung cancer. Most of them are irritating coughs. Coughing is an early symptom of lung cancer, which is characterized by paroxysmal irritating coughs, a feeling of incomplete coughing, generally no sputum or only a small amount of white foamy sputum, and secondary infection may cause purulent sputum. If there is no improvement after 2 weeks of anti-inflammatory treatment, you should be alert to the possibility of lung cancer. Or if the nature of the cough changes on the basis of the original chronic cough, and is even accompanied by "tracheal tinnitus" and "shortness of breath", you should pay attention. Another warning sign of lung cancer is intermittent and repeated small amounts of bloody sputum, or blood in the sputum.

Fourth, the early symptoms of lung cancer include chest tightness and chest pain. Generally, the symptoms are mild and the location is unclear. When the tumor invades the pleura and chest wall, the pain intensifies and the location is clearer and more constant than before. People should be alert to this early symptom of lung cancer.

Lung cancer is a very common malignant tumor that seriously threatens human health. It is also a major factor in mortality in countries around the world. Especially in recent years, with the development of the economy and changes in the environment, the incidence of lung cancer has remained high, and we must pay attention to prevention.