Symptoms The primary symptom of any skin cancer is usually a mole, sore, lump, or growth on the skin. Any change in appearance of a pigmented skin lesion over time is a warning sign. Also, watch for any bleeding from a skin growth. The ABCD system may help you remember features that might be a symptom of melanoma: • A symmetry: One half of the abnormal area is different from the other half • B orders: The lesion or growth has irregular edges. • C olor: Color changes from one area to another, with shades of tan, brown, or black (sometimes white, red, or blue). A mixture of colors may appear within one lesion. • D iameter: The trouble spot is usually (but not always) larger than 6 mm in diameter -- about the size of a pencil eraser. The key to treating melanoma is recognizing symptoms early. You might not notice a small spot of concern if you don't look carefully, so perform thorough self-examinations on a regular basis. Skin cancers may have many different appearances. They can be small, shiny, or
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