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The purpose of this dissertation is to study and analyze skin cancer on medical, nutritional and aesthetic level. As far as, the medical level is concerned, the aim is to update the effects of sun radiation on the skin, the causes of skin cancer, its types, as well as its prevention and treatment. As regards the nutritional level, the present assignment is based on researches that have done not only in specific foods and nutrients, but also in various diets which prevent skin cancer or help to improve the overall health of human being as well as its skin. On the aesthetic level, it is based on skin repair and its regeneration after various invasive methods that may leave some types of scarring.