When to Worry About a Mole

Most moles are harmless, but some changes can be an early sign of skin cancer. Knowing what to look for—and seeking evaluation promptly—can save lives. If you notice a changing, irregular, or unusual mole, don’t wait—book a skin check with our clinic today.

The ABCDEs of a Suspicious Mole

Dermatologists often use the ABCDE method to identify moles that may be concerning:

A – Asymmetry: One half of the mole doesn’t match the other half

B – Border: Irregular, notched, or scalloped edges.

C – Color: Uneven pigmentation or multiple colors.

D – Diameter: Larger than 6 mm (about the size of a pencil eraser) or growing over time.

E – Evolving: Any change in size, shape, color, or texture.

These features are also commonly described in the signs of skin cancer.

Other Warning Signs to Watch For

Even if a mole doesn’t meet all ABCDE criteria, certain changes should prompt evaluation:

Bleeding, crusting, or oozing

Itching or tenderness

New moles appearing in adulthood

Rapid changes in a previously stable mole

If you notice any of the warning signs above, it’s important to get a professional assessment. Early detection makes treatment simpler and more effective. At our clinic, we offer comprehensive skin cancer screenings, dermoscopy, and mole mapping to ensure nothing is missed.

References:

https://www.canadianskincancerfoundation.com/early-detection/the-abcdes-of-early-detection/