The symptoms for lung cancer often depend on where the cancer is. For example, if the cancer tumor is at the center of the chest, it can cause coughing and shortness of breath. Reason being, the tumor may be pressing on the major airway or blood vessel. Bacteria and secretions from the lung may back up behind the obstruction in the airway, causing pneumonia. If the cancer tumor occurs on the outside parts of the lung, you can experience pain, as this is the only area of the lung with nerve endings. The heart and center of the lung don’t have any nerve endings so lung cancer tumors in these areas are often unnoticed.
Lung cancer causes the highest cases of death in all kind of cancer because their symptoms can because by other conditions and are often overlooked. As mentioned before, lung cancer rarely causes pain, many patients often don’t have an early diagnose.
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