Harvard Health Letter

Ask the doctor: Pay attention to skin irregularities

Q. Brown age spot on my face seems to be getting larger. Should I be concerned?

A. A brown-colored spot anywhere on the skin that's getting larger is always something to be concerned about. Most brown spots on the skin turn out to be nothing serious, but some are melanoma—a potentially fatal skin cancer. There are certain danger signs that increase the possibility that a brown spot is melanoma. It's called the ABCDE rule.

Asymmetry: Does one side or half of the lesion look different from the other half?

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