AI skin screening
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Understand a skin spot in seconds.

Upload a photo for an AI risk estimate, likely conditions and a clear next step — then track your moles over time to catch dangerous changes early.

◆ Google Derm Foundation◆ ~0.80 accuracy (AUC)◆ Private & deletable
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Free & non-profit. Naevus is a public-good project — no ads, no fees, and we never sell your data.
Not a diagnosis. An educational screening aid that cannot rule out skin cancer. See a dermatologist for any spot that is new, changing, bleeding, non-healing, or worrying.

⚡ Quick check

Analyse a single photo now — no account needed.

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📈 Track your moles over time

Log in to save moles and get warned if one changes dangerously.

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🩺 Learn the warning signs

Dermatologists use the ABCDE rule to spot melanoma early — check moles for:

Asymmetry — one half unlike the other
Border — irregular, ragged or blurred edges
Colour — uneven, or more than one colour
Diameter — larger than 6 mm (a pencil eraser)
Evolving — changing in size, shape or colour

Check your own skin regularly and get anything new, changing, itching or bleeding seen early — when caught early, skin cancer is highly treatable.

Learn more from American Academy of Dermatology · Canadian Dermatology Association. This tool doesn't replace a doctor's exam.

Naevus — a free, non-profit educational project.
No ads. No fees. We never sell your data.
Learn·About·FAQ·Quick check
Not a medical device. Cannot rule out skin cancer — always see a dermatologist for anything concerning.