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The skin is the largest organ of your body. Skin protects you from heat, sunlight, injury, and infection. It helps keep your body warm in the winter and cool in the summer. Skin also stores water and fat, and produces vitamin D. The skin has several layers.
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Some people use statistics to try to figure out their chances of getting cancer or of being cured. Remember, though, that this data shows what happens with large groups of people. Because no 2 people are alike, this information can't be used to know or predict what will happen to you.
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Certain factors can make one person more likely to get skin cancer than another person is. These are called risk factors. Although such risk factors do exist, a person who has one or more risk factors will not necessarily get skin cancer. In fact, a person can have all the risk factors and still not get skin cancer, or he or she can have no known risk factors and still get the disease.
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Most skin cancers appear as a new growth or as a change in the size or in the color of moles you've had. These changes can happen slowly or rapidly. Some growths may appear as sores that never go away, or the growths may bleed.
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