The cause of lung cancer has been seen to be the abnormalities in cells. The body of human beings automatically regulates the production and growth of cells when the body needs them. If there is uncontrolled growth of cell in the tissues of the lungs, then final results may be developing of lung cancer.
Symptoms of lung cancer vary depending on the location and the spreading effect of the tumor but one cannot easily identify early warnings of lung cancer. The best thing one can do is consult a doctor in cases of a new persistent cough or the worsening of an existing chronic cough, if there is blood in his sputum, chest pains and difficulties in breathing and unexplained weight loss
Cancer of the lungs can be categorized into primary lung cancer and Mesothelioma. The primary lung cancer is cancer that starts in the lungs while the Mesothelioma or also referred to as secondary lung cancer normally results when the origin of the cancer was from another part of the body spreading to the lungs. The causes of lung cancer can be through smoking, radon gas, asbestos or viruses not forgetting the genetic risk.
Smoking: Smoking of cigarettes is the leading cause of lung cancer. In the developed world, cigarette smoking accounts for more than 80% of lung cancer related deaths. People who start smoking at a tender age are at a higher risk of developing lung cancer earlier in life due to the high exposure period. Non-smokers can also develop this type of cancer when they inhale smoke released by smokers found in their midst. All these modes are equally dangerous that is, the active pipe or cigar smoker and the passive smoker.
Radon Gas: This gas is natural in occurrence and is known to pass from the soil to building foundations. Exposure to these gases will very much vary as per the locality and the underlying soil and rocks in that area.
Asbestos: Individuals who have had prolonged contact with asbestos stand a higher chance of developing lung cancer especially in the event they do smoke for the combination of asbestos and tobacco will tend to act as one thus increasing the risks. Heavy exposure to asbestos may result to far greater risks of developing lung cancer.
Viruses: In early times, viruses where thought to only cause lung cancer in animal. However, recent studies show that they can cause cancer I humans too. These viruses include JC virus, simian, papillomavirus and others.
To prevent lung cancer, people should stop smoking.
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