How to identify a melanoma (malignant skin cancer tumor): ABCDE
- A - Asymmetry (if the mole is amorphous)
- B - Border (irregularity, non-smooth lines)
- C - Color (variations of pigmentation)
- D - Diameter (larger than the diameter of a pencil eraser)
- E - Evolving over time
A mole with one or more of these qualities should be assessed (and perhaps a biopsy taken) by a physician.