Shining light on sun safety for Sun Awareness Week 2025

Kicking off today, Sun Awareness Week (12-18 May) is the start of the British Association of Dermatologists’ (BAD) summer-long campaign to encourage everyone to protect their skin from sun damage and skin cancer, the most common cancer in the UK.

There are several types of skin cancer, with melanoma and non-melanoma skin cancers being the most common. Melanoma develops from melanocytes, cells in deeper layers of the skin that give skin its colour. Non-melanoma skin cancers, such as basal and squamous cell carcinoma, develop from cells known as keratinocytes found in the outer layer of the skin. Simple steps like using sunscreen, avoiding sun in the middle of the day, wearing sun hats, and reducing the amount of direct sun exposure can lower your risk of both.

Recent research from the BAD journals—British Journal of Dermatology, Clinical and Experimental Dermatology, and Skin Health and Disease—offers new insights into preventing, diagnosing, and treating melanoma and non-melanoma skin cancers. Here are some highlights:

Why sunscreen matters

Using sunscreen every day is one of the best ways to stay safe. The sun gives off ultraviolet (UV) rays that harm your skin and raise skin cancer risk, and regular use of high-SPF sunscreen can protect you. Sunscreen comes in many forms, like creams, lotions, sprays, and sticks. Apply it 15-30 minutes before going outside. Reapply every 2 hours, or after swimming or intense physical activity.

Sunscreen prevents skin cancer and premature ageing (called photoageing), but it’s good to know the facts. A recent narrative review found possible downsides of using sunscreen, like allergic skin reactions and concerns about endocrine disruption. Some ingredients, like preservatives and fragrances, may cause allergic skin reactions, though evidence suggests these reactions are rare. Concerns about hormone effects are low, as sunscreen stays mostly on the skin’s surface.

Photoageing: a key concern

UV rays don’t just increase skin cancer risk—they also age your skin early, causing wrinkles and spots. A recent survey across 17 countries found that people often worry more about photoageing than skin cancer. So, talking about photoageing in sun awareness campaigns could motivate more people to engage in sun protective behaviours.

A digital sun protection campaign for healthcare workers

Researchers from University of Limerick Hospital Group in Ireland tried a new digital campaign to promote skin cancer awareness among hospital staff. Their study found that staff became more positive about sun protective behaviours after the campaign, showing that digital tools could work for everyone in encouraging sun protection.

Better sun habits, better outcomes

Campaigns like Sun Awareness Week make a real difference. A study from Austria found that people who improved their sun protection habits after being diagnosed with melanoma lived longer, showing that these behavioural changes can save lives.

Global melanoma trends

A population-level study across 162 countries found that melanoma diagnoses are rising over time, but death rates are steady or growing slowly. This may be related to improved screening and awareness programs for melanoma. However, this may be compounded by melanoma overdiagnosis, with some cases caught early that may not have been deadly. Researchers are still exploring this complex phenomenon.

Melanoma and gender

Men and women face different melanoma risks. This study from Australia found that, on average, women are often diagnosed with melanoma years earlier than men, especially on the torso and for thinner melanomas. Their findings suggest that sex-tailored approaches to melanoma control could improve prevention and care.

Sun safety policy in primary schools

As per the World Health Organization, school sun protection programmes may be the key to skin cancer prevention. This study carried out an online survey of primary schools in Wales to understand their sun safety policies and practices. Of 471 schools that responded, only 183 enforced their policy. Those who did not have a policy were ‘not aware of the need’ (34.6%); ‘need assistance with policy or procedure development’ (30.3%); or ‘not got around to it just yet’ (26.8%).

Skin cancer and blood cancers

This study in the Netherlands found that patients with blood cancers have a higher risk of developing skin cancers across their lifetime. This means that targeted awareness campaigns for sun protection are vital for this patient population.

Diabetes drugs and skin cancer

In this systematic review, the authors found that drugs for type 2 diabetes, especially metformin, may lower risk of non-melanoma skin cancer. This is good news for people with type 2 diabetes who are worried about developing skin cancer.

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This Sun Awareness Week, we are urging everyone to prioritise sun protection to prevent skin cancer and premature skin ageing. Check your skin regularly and see a doctor if you notice any new or changing moles or other skin lesions.

Join the #SunAwarenessWeek conversation and share your sun safety tips! You can explore the latest research from the BAD journals here.

_{Featured image by Kaboompics.com via Pexels.}