Skin Cancer Awareness Month May 2026

What is Skin Cancer?

Skin cancer is one of the most common types of cancer in the UK. It develops when abnormal cells begin to grow in the skin, usually as a result of damage from ultraviolet (UV) radiation from the sun or sunbeds.

There are two main categories of skin cancer:

Non-melanoma skin cancer

• The most common type of skin cancer in the UK
• Usually develops slowly and is often treatable when caught early
• Includes basal cell carcinoma and squamous cell carcinoma

Melanoma skin cancer

• Less common but more serious
• Can spread to other parts of the body if not detected early
• Often appears as a new mole or a change in an existing mole

Early diagnosis plays a vital role in successful treatment outcomes.

Signs and Symptoms to Look Out For

It is important to regularly check your skin for any changes. Some signs to be aware of include:

• A new mole or growth
• A change in size, shape, or colour of an existing mole
• A mole that itches, bleeds, or becomes crusty
• A sore that does not heal
• A patch of skin that looks red, shiny, or scaly

A useful guide for spotting potential melanoma is the ABCDE rule:

• A – Asymmetry: one half of the mole does not match the other
• B – Border: irregular or uneven edges
• C – Colour: multiple colours or uneven colour
• D – Diameter: larger than around 6mm
• E – Evolving: any change in size, shape, colour, or symptoms

If you notice any of these changes, it is important to seek medical advice as soon as possible.

Reducing Your Risk

While not all skin cancers can be prevented, there are steps you can take to reduce your risk:

• Use sunscreen with a high SPF and UVA protection
• Avoid prolonged sun exposure, especially between 11am and 3pm
• Wear protective clothing, including hats and sunglasses
• Avoid sunbeds
• Regularly check your skin for any changes

Protecting your skin all year round is important, even on cloudy days.

When to Seek Medical Advice

If you notice a new skin lesion, a mole that looks unusual, or any change to your skin that concerns you, it is important to have it assessed by a healthcare professional.

Early detection is key, and seeking advice promptly can make a significant difference.