A tan can look harmless after a weekend at the beach, a day on the tools or a few sessions under a tanning lamp. But does tanning cause skin cancer? Yes. Tanning is a visible sign that ultraviolet (UV) radiation has damaged the skin. That damage can build over time, change the DNA in skin cells and increase the risk of skin cancer.

For Australians, this is not a distant concern. Australia experiences high UV levels, and skin cancer is one of the country’s most common cancers. The good news is that much of the risk is preventable, and skin cancers found early are often highly treatable. Acting on a changing spot or booking a skin check can make a real difference.

Does tanning cause skin cancer directly?

A tan is the skin’s attempt to defend itself after UV exposure. When UV radiation reaches the skin, cells produce more melanin, the pigment that makes skin look darker. This may create a temporary tan, but it does not mean the skin has become safe from further damage.

Both natural sunlight and artificial UV radiation can injure DNA in skin cells. If the body does not repair that injury properly, damaged cells can begin to grow abnormally. Over years, this process may lead to melanoma, basal cell carcinoma or squamous cell carcinoma.

The risk is not limited to a severe sunburn. Sunburns matter, particularly blistering burns, but repeated lower-level exposure also adds up. That includes regular lunchtime walks without protection, weekends outdoors, driving with an exposed arm, working on a building site or deliberately lying in the sun to deepen a tan.

There is no healthy or safe tan produced by UV radiation. A tan may fade, but the cellular damage behind it does not simply wash away or disappear when winter arrives.

Why tanning beds are especially risky

Solariums and tanning beds expose the skin to concentrated artificial UV radiation. They are not a safer substitute for the sun. In Australia, commercial solariums are banned in most states and territories because of the known health risks, yet privately owned devices and overseas use remain a concern.

Artificial tanning can expose users to high doses of UVA radiation, which penetrates deeply into the skin and contributes to ageing and DNA damage. UVB also causes burning and can damage DNA. Neither type should be treated as cosmetic or harmless.

Using a tanning bed at a younger age is particularly concerning because skin damage begins accumulating early. If you have used solariums in the past, do not assume the opportunity for prevention has passed. Protect your skin now and tell your doctor or skin cancer clinician about your exposure history when discussing your individual risk.

A base tan does not protect you

One persistent myth is that developing a base tan prevents sunburn and makes outdoor time safer. It does not provide meaningful protection against skin cancer. A tan offers only minimal protection at best, while the process of getting it has already caused UV damage.

Sunscreen also should not be used to extend time in intense sun. It is one part of sun protection, not a permission slip to stay outside for hours. In Australia, UV can be damaging even on cool, cloudy days. Check the UV index and take protection seriously when it is 3 or above.

Use broad-spectrum, water-resistant SPF 50+ sunscreen generously on exposed skin, and reapply at least every two hours or sooner after swimming, sweating or towel drying. Pair it with clothing, a broad-brimmed hat, sunglasses, shade and planning outdoor tasks outside the middle of the day where practical. For people who work outdoors, sun protection needs to be routine workplace safety, not an occasional summer precaution.

Who should be particularly alert?

Anyone can develop skin cancer, including people with darker skin. Melanin offers some natural protection but does not eliminate risk, and cancers in skin of colour can be diagnosed later when warning signs are missed or dismissed.

Your risk may be higher if you have fair skin, freckles, light-coloured eyes, many moles, a history of sunburn or previous tanning-bed use. A personal or family history of melanoma also matters. So do immune-suppressing medicines, organ transplantation, outdoor work, long periods spent in high-UV environments and cumulative sun exposure over decades.

Skin cancer can develop in places that receive little sun. Check your scalp, ears, lips, soles, nails, between toes and genital area as well as commonly exposed areas. Smokers should pay particular attention to persistent changes on the lips, where UV exposure and tobacco use can compound risk.

When should you book a skin check?

Do not wait for a spot to become painful. Many skin cancers cause no pain in their early stages. A prompt assessment is sensible if you notice a new lesion, a mole that is changing, or a sore that does not heal.

For moles, remember the ABCDE warning signs: asymmetry, an irregular border, uneven colour, a diameter that is growing or larger than usual, and evolution – any change in size, shape, colour, sensation or behaviour. Melanoma does not always follow the textbook rules, though. A lesion that simply looks different from your other spots – an “ugly duckling” – deserves attention.

Non-melanoma skin cancers can look different. A basal cell carcinoma may appear as a pearly, pink or shiny bump, a persistent scaly patch or a sore that bleeds and heals repeatedly. Squamous cell carcinoma may present as a thickened, rough, crusted or tender spot that grows over time. These changes can be subtle, which is why regular self-checks are useful.

Book an appointment with a GP, dermatologist or qualified skin cancer clinician if you are concerned. Seek timely medical advice for any rapidly changing, bleeding, crusted or non-healing lesion. Every minute counts when an abnormal spot needs assessment.

Make prevention a habit, not a seasonal goal

The aim is not to avoid the outdoors. Physical activity, time with family and work are part of life. The practical goal is to avoid deliberate tanning and reduce unnecessary UV exposure whenever you can.

Choose shade at the beach, wear a long-sleeved shirt on the boat, keep a hat in the car, and make sunscreen as routine as taking water with you. Parents can help children build these habits early, but adults benefit from the same consistency. Skin damage is cumulative, and prevention remains worthwhile at every age.

If you have a history of tanning, do not let worry turn into avoidance. Start with a careful look at your skin, note anything new or changing, and arrange a professional skin check if you are unsure. Knowledge can save your life, and a timely appointment is a practical next step.