The sun's rays, also called ultraviolet or UV rays, damage the skin. The short-term results of unprotected exposure to UV rays are sunburn and tanning. In the long run, unprotected exposure to UV rays can cause skin cancer.
Follow these "safe-sun" guidelines whenever you are in the sun:
It's a good idea to do a monthly skin check. Ask your doctor about this. If your doctor thinks it's a good idea for you, pick a certain day each month, like the date of your birthday or the day you pay bills, to check your skin. A monthly skin check can help you find skin cancer early. The earlier skin cancer is found, the better the chance for a cure.
The "ABCDE" rule can help you look for signs of skin cancer. When you look at moles on your skin, look for the following:
A for asymmetry: A mole that, when divided in half, doesn't look the same on both sides
B for border: A mole with edges that are blurry or jagged
C for color: Changes in the color of a mole, including darkening, spread of color, loss of color, or the appearance of multiple colors such as blue, red, white, pink, purple or gray
D for diameter: A mole larger than 1/4 inch in diameter (about the size of a pencil eraser)
E for elevation: A mole that is raised above the skin and has a rough surface
You should also watch for the following changes:
If your doctor tells you to do skin checks, be sure to check your whole body once each month, including your back, your scalp and the bottom of your feet. Use a hand mirror to check the places that you can't see easily. Have someone help you check the top of your head. You can use a blowdryer on low speed to move your hair so you can see your scalp more easily.