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Cancer is one of the leading causes of death in the world today. Studies show that one in three people will suffer from some form of cancer in their lifetime. There are many different kinds of cancer that effect different parts of the body. Cancer is treated in various different ways. Some forms of cancer are curable, and some are not. Cancer usually comes from the formation of a tumor. Tumors form in the body when cells are produced unnecessarily. That is to say, that new cells are formed when they are not needed, and they group together to form a tumor. The tumor can be benign, which means that it is non-cancerous, or it can be malignant, which means that it is cancerous. If cells break away from a malignant tumor, they will enter the bloodstream, and spread throughout the body, damaging other parts of the body. Quite often, cancer appears with no definite cause. However, there are some activities that people engage in, that increase the risk of cancer. Smoking can cause cancer of the lung, mouth, and throat. Alcohol can cause cancer of the mouth, throat, and liver. Also, exposure to radiation and sunlight (or ultra-violet rays) can cause skin cancer. The exact cause of cancer still remains a mystery. Cancer can be detected early on by certain symptoms. As cancer progresses through it’s various stages, it will produce certain symptoms. The symptoms depend on the size and location of the cancer.
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