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In a nutshell
A common pigmented nevus, often called a mole, can be flat or slightly raised. Some are present at birth, while others develop during childhood and adolescence. “Mole” is used more broadly in everyday language; here it specifically refers to pigmented nevi.
Why does it happen?
Pigment-producing cells occur locally in clusters rather than being evenly distributed. This produces color and elevation; appearance and change over time matter more for medical assessment than the mere number of individual spots.
How common – and for whom?
Common
Common pigmented nevi are widespread. Their number and appearance change with age and individual factors.
Frequency is a qualitative description, not your individual probability.
Is it normal?
Stability and lack of symptoms suggest a harmless variation.
Voluntary control
not controllable
When to seek advice
Show rapid growth, irregular color, bleeding, or ulceration to a clinician.
Does this happen to you?
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Sources (1)
- National Cancer Institute: Common Moles, Dysplastic Nevi, and Risk of Melanoma (opens a new tab)
Explains clusters of pigment cells and changes that should be assessed.
Editorial update: . AI-assisted research and editing; not individually reviewed by a physician. How we research
