The short answer
The melanoma risk you can actually influence comes down mostly to one variable: cumulative UV damage — especially sunburns. Prevention is therefore refreshingly concrete: don't burn, protect your skin whenever the UV index is 3 or higher, and check your skin regularly so anything new or changing gets seen by a professional early. Early detection is where outcomes are won.
The five habits (Australia figured this out first)
Australia — with the world's highest melanoma rates — turned prevention into a national jingle: slip, slop, slap, seek, slide. Decades on, it's still the best checklist there is:
- Slip on clothing — fabric is the most reliable sunscreen you own; it never wears off at the pool.
- Slop on broad-spectrum SPF 30+ — every exposed patch, reapplied every two hours.
- Slap on a wide-brim hat — ears, neck and scalp are classic miss spots and classic melanoma spots.
- Seek shade — especially in the peak window when UV is highest (roughly 10 AM–4 PM in summer).
- Slide on sunglasses — UV damages eyes and eyelid skin too.
None of this means hiding indoors. It means treating UV 3+ the way you treat rain — check the number, dress for it, carry the right gear.
Know your personal risk
Baseline risk isn't equal. Extra care (and earlier professional skin checks) makes sense if several of these apply to you:
- Fair skin — Fitzpatrick Types I–II, which burn fast and tan poorly.
- Many moles (roughly 50+) or unusual-looking moles.
- Family history of melanoma in a parent, sibling or child.
- A history of bad sunburns, particularly blistering burns in childhood.
- Immunosuppression or previous skin cancer of any kind.
UV Buddy has a family-history flag on each profile for exactly this reason — switch it on and the app's guidance runs more conservative for that person.
The ABCDE self-check
Once a month, in good light, look your skin over (a mirror or a partner helps for the back). You're comparing against your own normal, using the dermatologists' alphabet:
- A — Asymmetry: one half doesn't match the other.
- B — Border: edges that are ragged, notched or blurred.
- C — Color: multiple shades — browns, blacks, sometimes red, white or blue.
- D — Diameter: larger than ~6 mm (a pencil eraser), though melanomas can be smaller.
- E — Evolving: anything changing in size, shape, colour, or that starts itching or bleeding. This is the big one.
Add the "ugly duckling" rule: a spot that simply doesn't look like its neighbours deserves a professional opinion. Self-checks complement clinicians — they never replace them. If you're higher-risk, an annual professional skin check is a very good habit.
Protection counts when UV is 3 or higher — not just on beach days. The forgettable Tuesday lunch walks add up more than the two beach weeks.
The consistency problem (and how to cheat it)
Everyone protects themselves on holiday. Melanoma prevention, though, is a daily game: the UV 5 school run, the garden hour, the Saturday ride. The habit fails quietly because nothing reminds you — which is exactly the kind of problem you can outsource to software. UV Buddy tells you the moment your day crosses UV 3 ("Lotion up!"), runs the two-hour reapply alarms, and its streaks and monthly report card make consistency visible — which, for habits, is most of the battle.
Make protection a streak, not a scramble
The monthly report card shows applications, on-time percentage and missed reapplies for every family member — and the family-history flag makes the app's burn guidance extra conservative where it should be.
Mini-FAQ
Does one bad sunburn really matter?
Burns — especially blistering ones early in life — measurably raise lifetime risk; dermatology bodies are consistent on this. One burn isn't destiny, but patterns of burning are the thing to break. The useful takeaway isn't guilt about the last one; it's preventing the next one.
Do darker skin types get melanoma?
Less often, yes — but it happens, and it's frequently caught later (including on palms, soles and under nails, where nobody looks). Everyone benefits from the monthly check, whatever their Fitzpatrick type.
Are tanning beds safer than the sun?
No. The WHO's cancer agency classifies tanning devices as carcinogenic to humans — the same top category as tobacco. If you want colour, the slow outdoor route with a timer is the defensible one.
UV Buddy is for informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. If you notice a new, changing or unusual spot — or anything that worries you — see a qualified clinician; early professional assessment matters. Sources: WHO / IARC classification of UV radiation; Australia's SunSmart program.
Protection that actually sticks
UV alerts at the right threshold, alarms that don't forget, and a report card that keeps the whole family honest.
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