When it comes to the health of your skin, being able to spot the difference between a benign mole and a dangerous melanoma can be the difference between life and death. While a majority of moles are entirely harmless and nothing more than a non-issue, melanoma is a form of skin cancer that requires immediate medical treatment.
To assist in the identification of warning signs early on, dermatologists usually employ an easy-to-remember guideline called the ABCDE rule. This guide simplifies the identification of suspicious moles or skin lesions that may represent melanoma.
Breaking Down the ABCDEs of Melanoma
Every letter in the ABCDE guide represents a characteristic to observe while checking for a mole:
A – Asymmetry: Moles that are healthy are symmetrical. If you put a line down the middle, both sides must be similar. If one side differs from the other, that is a possible warning sign.
B – Border: Benign moles have smooth, even borders. Melanoma can have irregular, notched, or blurred borders that make it hard to define where the mole stops and your skin starts.
C – Color: A normal mole is typically one solid color of brown. Melanomas are often many different colors, like tan, black, brown, red, or even blue, which is a red flag.
D – Diameter: Moles are all different sizes, but melanomas tend to be larger than 6 millimeters in diameter, roughly the width of a pencil eraser. If you have a mole that’s increasing in size or is large, it’s a good idea to have it checked out.
E – Evolving: Benign moles tend to stay the same over time. If you see a mole changing in size, shape, or color—or if it starts to itch, bleed, or become tender—it could be a sign of melanoma.
The “Ugly Duckling” Rule
And another tip that can be useful: Search for what dermatologists term the “ugly duckling.” This is a mole that appears distinctly different from all your others. Although most of your moles are probably fairly similar, the one that doesn’t fit the mold may be worth checking out.
Stay Proactive with Skin Health
Doing skin self-exams regularly and visiting a dermatologist once a year, particularly if you have numerous moles or have a history of skin cancer in your famil, —can allow you to spot issues early, when they’re simplest to treat.
By being educated and watching for changes in your skin, you can be proactive about maintaining healthy skin and avoiding dangerous complications.