Skin Cancer: Prevention
Exposure to ultraviolet (UV) rays is the most important preventable risk factor for
skin cancer. UV rays come from the sun and from sunlamps and tanning beds. There are
two types of UV rays: UVA and UVB. Both cause damage to the skin.
Here’s how you can help reduce your risk of skin cancer:
Minimize your exposure to the sun between 10 a.m. and 4 p.m. This is when UV rays
Apply a generous amount of sunscreen before you go outside. Use a water-resistant,
broad-spectrum sunscreen with a sun protection factor (SPF) of at least 30. Broad-spectrum
means the sunscreen protects against both UVA and UVB rays. Apply it to all areas
of your body that will be exposed to the sun.
Reapply sunscreen every 2 hours, even on cloudy days. Reapply after swimming or sweating.
Wear clothing that covers your body and shades your face. Wear long-sleeved shirt,
pants, and a wide-brimmed hat. Hats should provide shade for the face, ears, and back
of the neck.
Wear sunglasses with a UV coating. This will reduce the amount of UV rays that reach
the eye, and protect your eyelids and the eye itself.
Do not use sunlamps or tanning beds.
Protecting children from the sun
Skin damage from UV rays early in life can lead to skin cancer later in life. Keep
children from too much sun exposure between 10 a.m. and 4 p.m. This is when UV rays
are strongest. Apply a generous amount of sunscreen often to children age 6 months
The American Academy of Pediatrics (AAP) approves of the use of sunscreen on babies
younger than 6 months old if not enough cover is available with clothing and shade.
Dress your baby in lightweight clothing that covers most areas of skin. Apply a small
amount of sunscreen to exposed areas such as the face and back of the hands.
Take care around sand and snow
Sand and water reflect UV rays, even under a beach umbrella. If you’re on the beach,
cover up and use sunscreen. Snow is also good at reflecting UV rays. Cover up and
wear sunscreen while outside in snowy areas.
Sources: American Academy of Dermatology, The Skin Cancer Foundation