Skip to main content

Main causes of melanoma skin cancer

Ultraviolet (UV) light is the most common cause of melanoma. It comes from the sun and is used in sunbeds.

Melanoma is more common in older people, but younger people can also get it.

You're also more likely to get melanoma if you have:

  • pale skin that burns easily in the sun
  • red or blonde hair
  • blue or green eyes
  • a large number of freckles or moles
  • had a lot of sun exposure and you've had sunburn a lot in the past
  • used sunbeds a lot
  • a history of skin cancer in your family or you've had skin cancer before

If you have black or brown skin, you have a lower chance of getting melanoma, but you can still get it.

People with black or brown skin most often get melanoma on the soles of the feet, palms of the hands, or under a nail.

The toes of a person with dark brown skin. There is a thick, black, vertical line caused by melanoma through the middle of their big toenail.

How to lower your chance of getting melanoma

Staying safe in the sun is the best way to lower your chance of getting skin cancer (both melanoma and non-melanoma).

Do

  • stay out of the sun during the hottest part of the day (11am to 3pm in the UK)

  • keep your arms and legs covered and wear a wide-brimmed hat and sunglasses that provide protection against ultraviolet (UV) rays

  • use sunscreen with a sun protection factor (SPF) of at least 30 and at least 4-star UVA protection – make sure you reapply it regularly

  • make sure babies and children are protected from the sun – their skin is much more sensitive than adult skin

Information:

Find out more

Page last reviewed: 06 March 2023
Next review due: 06 March 2026

Image provided by AIM at Melanoma