Are Moles a Health Concern?

The typical adult has between 10 and 45 moles. While moles are harmless, they can turn cancerous in rare cases. 

At North Pacific Dermatology & Aesthetics, dermatologist Kelly Kinsley, MD, wants to help you understand when a mole is concerning. Read on to better understand your moles and their effect on your skin health. 

What are moles?

Moles are skin growths that develop when pigment cells (melanocytes) grow in clusters rather than being spread throughout the skin. They can appear anywhere on the body and vary in size, shape, and color. While most moles are benign (non-cancerous) and don't indicate a serious skin condition, some may develop into melanoma, a type of skin cancer.

How do I know if a mole is cancerous?

The vast majority of moles are harmless and remain so throughout your life. These benign moles typically have regular borders, uniform color, and a stable size. 

But, your regular skin checks may alert you to moles that need closer attention. Watch for the following possible concerning characteristics:

Changes in size or shape

If a mole grows larger or changes shape, it could signify abnormal growth.

Irregular borders

Moles with irregular, notched, or blurred borders may be more concerning.

Color changes

Moles that exhibit multiple colors or uneven color distribution should be examined.

Itching or bleeding

Any unusual symptoms associated with a mole should be promptly evaluated.

Dr. Kinsley, along with other dermatologists, uses the"ABCDE" rule to remember alarming mole characteristics:

• Asymmetry: One half of the mole does not match the other half
• Borders: Irregular, scalloped, or poorly defined borders
• Color: Varied shades of brown, black, white, red, or blue within the mole
• Diameter: Larger than the size of a pencil eraser (about 6 mm)
• Evolving: Changes in size, shape, color, or symptoms over time

If you notice any of these changes or have concerns about a mole, make an appointment at North Pacific Dermatology & Aesthetics. Early detection and treatment usually mean better outcomes, especially when dealing with potential skin cancer.

How to prevent cancerous moles?

While not all moles can be prevented, practicing sun safety can help reduce the risk of developing new moles or melanoma. Use a broad-spectrum sunscreen with SPF 30 or higher daily, even with clouds. Wear hats, sunglasses, and clothing that covers exposed skin.

Even if you use sunscreen and smart clothing, limit sun exposure during midday hours, when the sun's rays are strongest.

At North Pacific Dermatology & Aesthetics, we're committed to helping ensure your skin remains healthy and radiant for years to come. If you have any concerns about your moles or skin health in general, don't hesitate to contact us. Call or use this website to schedule your appointment today. Your skin's well-being is our priority.