What is Skin Cancer? What Causes Skin Cancer?

Skin cancer is the malignant (cancer) cells found in the epidermis, an outer layer of the skin, which acts as the body’s major barrier against an inhospitable environment.The epidermis is made up of different types of cells. Skin cancers are classified by the types of epidermal cells involved:Basal cell carcinoma develops from abnormal growth of the cells in the lowest layers of the epidermis...