Regular Moles (Nevi)

Moles are one of the most common skin changes, and most people have between 10 and 40 moles on their body. While most are harmless, it is important to know the signs that indicate a mole should be examined further.

What is a mole?

Moles, also called nevi, are common skin growths that occur when pigment-producing cells (melanocytes) in your skin grow in clusters or clumps. They are usually harmless and do not cause physical discomfort, but they can affect your appearance.

What does a mole look like?

Regular moles are typically small, round, or oval-shaped spots on the skin. They can be flat or raised, and their color ranges from pink to brown or black. Most moles are less than 6 millimeters (about 1/4 inch) in diameter.

The ABCDE rule: When should you be concerned?

It is important to monitor your moles for changes. Use the ABCDE rule to assess if a mole may be problematic:

• A – Asymmetri: One half looks different from the other.
• B – Kant (Border): The edges are uneven, jagged, or irregular.
• C – Farve (Color): The color varies with different shades of brown, black, red, white, or blue.
• D – Diameter: Larger than 6 millimeters (pencil eraser size).
• E – Evolution: The mole is changing in size, shape, or color over time.

When should you see a doctor?

Consult a dermatologist if you notice a mole that meets one or more of the ABCDE criteria, if a mole suddenly changes, or if you are unsure. Early detection of melanoma saves lives.