Most skin cancers are caused by too much exposure to ultraviolet (UV) rays. UV rays come from the sun, tanning beds, and sunlamps. UV rays can damage skin cells.
To lower your risk of getting skin cancer, you can protect your skin from UV rays from the sun, and avoid artificial sources of UV exposure like tanning beds and sunlamps.



Protection from UV rays is important all year, not just during the summer. UV rays can reach you on cloudy and cool days, and they reflect off of surfaces like water, cement, sand, and snow. In the continental United States, UV rays are strongest from 10 a.m. to 4 p.m. daylight saving time (9 a.m. to 3 p.m. standard time).
The UV Index forecasts the strength of UV rays each day. If the UV index is 3 or higher in your area, protect your skin from too much exposure to the sun. CDC recommends several ways to protect your skin when the UV index is 3 or higher:

• Stay in the shade.
• Wear clothing that covers your arms and legs.
• Wear a hat with a wide brim to shade your face, head, ears, and neck.
• Wear sunglasses that wrap around and block both UVA and UVB rays.
• Use a broad spectrum sunscreen with a sun protection factor (SPF) of 15 or higher.

For this and additional information, please visit www.cdc.gov/skin-cancer/index.html