During a skin check, look for any new or unusual growths, changes in existing moles, freckles, or spots, and any lesions that do not heal. Pay attention to the ABCDEs of melanoma: - A: Asymmetry - One half of the mole does not match the other. - B: Border - Edges are irregular, ragged, or blurred. - C: Color - Varied shades of brown, black, or other colors. - D: Diameter - Larger than 6mm (about the size of a pencil eraser). - E: Evolving - Changes in size, shape, or color over time.