Dysplastic Nevus vs Common Nevus

How to tell the difference — key features compared side by side.

Feature
Dysplastic Nevus
Common Nevus
Category
Pre-cancerous
Benign
Key feature
Atypical moles with irregular features. The single strongest visual risk marker for melanoma.
Normal moles - clusters of pigment cells. Usually harmless, but monthly monitoring for changes is essential.
Risk factors
Family history of dysplastic nevi or melanoma; Fair skin (Fitzpatrick I-II); Sun exposure and sunburns
Genetic predisposition (number of moles is largely hereditary); Sun exposure during childhood and adolescence; Fair skin
Action needed
Any atypical mole actively changing in size, shape, or color
Any mole that changes in size, shape, or color

Dysplastic Nevus

A dysplastic nevus is a mole displaying irregular features: larger than 5mm, irregular borders, uneven pigmentation, and often a flat component surrounding a raised center (the fried egg appearance).

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Common Nevus

A common nevus is a normal mole - a well-defined growth formed by a cluster of melanocytes (pigment-producing cells). Most adults develop between 10 and 40 common moles by their 30s, and the number gradually decreases with age as some moles naturally fade.

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Does yours look more like dysplastic nevus?

Quick self-check

Does this look like dysplastic nevus? Answer 2 questions.

Is the mole larger than 5mm (pencil eraser size)?

Does it look distinctly different from your other moles?

Still not sure?

Our full ABCDE checker evaluates 5 clinical criteria dermatologists use.

Full ABCDE check →