Health Tip: The A-B-C's of Skin Cancer

(HealthDayNews) -- Your ability to spot the warning signs of a melanoma, the most deadly skin cancer, could make all the difference.

The Harvard Health Letter offers this alphabetical memory tool:

• Assymetry: One half of a mole doesn''t match the other half.
• Border irregularity: Mole edges are ragged, notched or indistinct.
• Color: Mole pigmentation is uneven.
• Diameter: Mole is larger than a pencil eraser or shows a sudden or progressive increase in size.