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Sun Damage and Pigmentation: When a Spot Is Harmless, and When To Check

Age spots, sun spots and pigmentation are usually harmless — but some can mimic or hide a skin cancer. Here is how to tell.

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Written & reviewed by Dr Rupinder Singh Walia — MBBS, FRACGP, Dip. Dermatology (Cardiff, UK) · AHPRA MED0001647256 · special interest in skin cancer medicine & dermoscopy
The signs that mean “get it checked”
New
a new, unusual spot
Changing
size, shape or colour
Growing
getting bigger
Bleeding
or crusting, or itching
Won’t heal
a sore that keeps returning
Any one of these is worth a doctor’s eye — skin cancer is often painless early on.

Years of Australian sun leave their mark — age spots, sun spots, freckles and patches of pigmentation. The great majority are completely harmless. But because a few skin cancers can hide among them, it is worth knowing which pigmented spots deserve a closer look. If one is on your mind, start with a free AI skin check.

The common harmless marks

When a pigmented spot is worth checking

Have a pigmented spot reviewed if it is changing, has uneven or several colours, an irregular border, or stands out from your other spots. A slowly growing, uneven brown patch on the face of an older adult can be an early melanoma (lentigo maligna) and should not be dismissed as “just a sun spot”.

Health and appearance

Protecting your skin from UV is the single best thing you can do for both — it lowers your skin-cancer risk and slows the pigmentation and ageing that sun causes. If you are thinking about treating pigmentation cosmetically, the safest first step is to have a doctor confirm the spot is benign.

Two ways to look after sun-damaged skin

Sun damage is two things at once — a small skin-cancer risk to stay on top of, and the pigmentation and ageing you might want to improve. You can start on either, free:

What’s on your mindStart freeIf you want more
Is this spot anything?Free AI skin check →A doctor reviews your photo
Document pigmentation or sun-damaged skinSee photo monitoring →A connected photo record over time; not a diagnosis or treatment

Not a diagnosis; cannot rule cancer in or out.

Worried about a mole, mark or changing skin area?

Most skin-cancer advice tells you to watch for change. Skin360AI helps you keep photos of one or more spots connected over time. A spot can be a mole, freckle, mark, lump, sore, patch or any skin area you want to watch. It is not a diagnosis and cannot rule skin cancer in or out.

Free AI skin check A$49 doctor review

If a lesion is new, changing, bleeding, non-healing or worrying you, arrange an in-person GP or skin-cancer clinic assessment.

Frequently asked questions

Are age spots and sun spots dangerous?

Usually not — most are harmless sun-damage marks (solar lentigines). The concern is that some skin cancers, particularly melanoma and lentigo maligna, can look similar, so a pigmented spot that is changing or uneven is worth checking.

How can I tell sun damage from skin cancer?

Harmless sun-damage marks are usually flat, even in colour, stable over time and look like your other spots. Get one checked if it is changing, has uneven or multiple colours, an irregular border, or stands out as different.

Can pigmentation be removed?

Harmless pigmentation can often be treated cosmetically — but it is wise to have a spot confirmed as benign by a doctor first, so that nothing significant is treated over or missed.

Related guides

Skin cancer: types & signs →Basal cell carcinoma (BCC) →What melanoma looks like →Nodular & amelanotic melanoma →Lentigo maligna (sun-spot melanoma) →Squamous cell carcinoma (SCC) →Is my mole skin cancer? →A$49 online mole photo review →What does skin cancer look like? →How much is a skin check? →Free AI skin check online →Skin360AI photo follow-up →

Check and watch the spots you care about over time

Use the free AI-assisted skin check to save photos of moles, marks, lumps, sores, patches or other skin areas you want to watch. A photo record is not a diagnosis or a cancer all-clear.

Free AI skin check →

See how skin monitoring works →

A structured photo record is not a diagnosis, cannot exclude skin cancer and does not replace an in-person examination.
Medically reviewed by Dr Rupinder Singh Walia (MBBS, FRACGP, Diploma in Dermatology — Cardiff University, UK; AHPRA MED0001647256). Last reviewed August 2026. This information is general and is not a diagnosis; it cannot rule skin cancer in or out. See your GP or a skin-cancer clinic in person for anything that concerns you.
From the author. This guide reflects the approach in Dr Walia’s book, The Skin Cancer Guide Your Doctor Wants You to Read — a plain-language guide to catching skin cancer early.
Free AI skin check → Free online skin check · photo record · no card