Skin cancer screening involves checking for signs of cancer before any symptoms. A comprehensive skin cancer screening includes looking at all areas of the skin to identify potential signs of skin cancer, which are discernible to the naked eye. Skin cancer is prevalent, and screening plays a crucial role in finding it at a stage where treatment is more manageable. During a skin cancer screening, you or your provider check your skin for abnormalities such as moles, birthmarks, or areas with unusual color, size, shape, or texture.