What early symptoms can identify lung cancer? You should also know the causes of lung cancer

If lung cancer has developed to the late stage, then even if we have a lot of gold, silver and jewelry, it will be useless because it cannot save the life of lung cancer patients. Therefore, when lung cancer has just shown early symptoms, we should discover the symptoms of lung cancer through some clues and not give lung cancer a chance to develop.

What are the early symptoms of lung cancer?

1. Cough

Because lung cancer occurs in the bronchial lung tissue, it usually causes respiratory irritation and an irritating cough.

2. Low fever

The swelling of the tumor will block the bronchi, and then there will often be obstructed lobes. The severity of the symptoms is not suitable. Some patients only have a low fever, while severe ones have a high fever. The condition may temporarily improve after taking medication, but will soon relapse.

3. Chest pain

In the early stages of lung cancer, the chest pain symptoms are not obvious, mainly dull pain, dull pain, and the location is uncertain, and the relationship with breathing is also uncertain. If the pain persists, it means that the cancer may involve the pleura.

4. Blood in Phlegm

The tumor causes damage to capillaries, so when the patient coughs, there will be a small amount of bleeding, usually mixed with sputum, and appear intermittently or discontinuously. Most lung cancer patients are diagnosed with lung cancer because of coughing up blood.

Causes of lung cancer

Occupational factors

Substances that have been confirmed to be carcinogenic by epidemiology, etiology and experiments include inorganic arsenic, asbestos, chromium, nickel, coal tar, dichloromethyl ether, chloromethyl ether, ethylene chloride, etc. For those who are exposed to the above carcinogens in an occupational environment and smoke, the risk of lung cancer is further increased.

Air pollution

With the development of industry, many carcinogens have increasingly polluted the atmosphere. Burning coal for heating or cooking in poorly ventilated rooms can cause indoor air pollution, and cooking fumes and indoor coal smoke may be one of the risk factors for lung cancer in women. The difference in the incidence of lung cancer in urban and rural areas also suggests that air pollution is related to the occurrence of lung cancer.

Finally, experts pointed out that there is a lot of ionizing radiation in our environment now. If we still have the habit of smoking, the chance of developing lung cancer is very high. Because when we smoke frequently, the lungs are already damaged. The damaged lungs cannot resist the damage of ionizing radiation. Under the stimulation of these combined factors, lung cancer symptoms appear.