How many stages are the symptoms of lung cancer?

summary

Lung cancer is one of the most malignant tumors that incidence rate and mortality rate increase fastest and is the most dangerous to the health and life of the population. In recent 50 years, many countries reported that the incidence rate and mortality rate of lung cancer were significantly higher. Incidence rate and mortality rate of male lung cancer were the first in all malignant tumors. Next, I'd like to share my views with you.

How many stages are the symptoms of lung cancer?

Cough is the most common symptom, with cough as the first symptom accounting for 35% - 75%. Cough caused by lung cancer may be related to changes in bronchial mucus secretion, obstructive pneumonia, pleural invasion, atelectasis and other chest complications.

Sputum with blood or hemoptysis is also a common symptom of lung cancer, as the first symptom of about 30%. Due to the rich blood supply and brittle texture of tumor tissue, blood vessels rupture during severe cough, which may also be caused by local necrosis of tumor or vasculitis.

Chest pain was the first symptom in about 25%. Often for chest irregular dull pain or dull pain. In most cases, peripheral lung cancer invades parietal pleura or chest wall, which can cause sharp and intermittent pleural pain. If it continues to develop, it will evolve into constant drilling pain.

matters needing attention

Protect the environment and reduce air pollution are important measures to reduce the incidence rate of lung cancer.