Causes And Treatment Of Lung Cancer Essays

1362 Words Apr 22nd, 2015 null Page
The third cancer, lung cancer, it very deadly. It affects a good portion of the world’s population. Lung cancer is the uncontrolled growth of abnormal cells. This growth may start in one lung and continue to the other. The abnormal cells grow rapidly and develop into tumors. As these tumors continue to grow, they restrict the ability of the lungs to function. The lungs are not able to provide the bloodstream with oxygen. While benign tumors do not spread throughout the body, malignant tumors do. These are the most dangerous of tumors. They spread the cancer to other parts of the body through the bloodstream or the lymphatic system. This makes the cancer much harder to treat. Primary lung cancer starts in the lungs and spreads to other organs. Secondary lung cancer starts somewhere else and spreads to the lungs. These are different types of cancers and are treated in different ways. There are several causes of lung cancer. However, the most common is exposure to cigarette smoke. People can also get lung cancer from heavy exposure to environmental tobacco smoke or certain chemicals in the air. Being exposed to secondhand smoke may puts others at risk of getting lung cancer even if they have never smoked before. In addition, not all lung cancer is caused by smoking or exposure to carcinogens. Some cancers are genetic. This means that they are passed down through genes from parents to offspring. This particular gene makes a person more susceptible to developing cancer. There…

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