12 Signs of Skin Cancer

5. Pigmented patches, a dome, or bumps

The most common sign of skin cancer is a change on the skin. New patches resembling a mole may not be a mole at all, but a melanoma. The edges of a problematic patch will likely be less defined and appear more ragged. The coloring may be uneven, usually in varying shades of brown, tan, white, black, or blue. Normal moles are mostly symmetrical, while skin cancer patches are asymmetrical. Always check existing moles regularly for changes and do monthly skin exams to look for new moles or skin lesions.