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Dermatology

Actinic Keratoses

Actinic Keratoses Prevention

Actinic keratoses (AKs) develop in skin that has been exposed to the ultraviolet (UV) light of the sun for years. Therefore, the best defense against AKs is to practice sun protection. Sun-protection practices can prevent:

Ideally, sun protection should begin early in life because overexposure to UV radiation increases one's risk of developing AKs. What many people do not realize is that sun protection can be beneficial at any age, even when signs of sun damage, such as AKs, have already appeared. Sun protection can prevent further damage. Research also shows that the skin's recuperative powers can repair some of the damage when protected from ultraviolet (UV) light.

The American Academy of Dermatology recommends that everyone protect their skin by following these sun-protection practices:

Sun-Protection Practices

  1. Avoid deliberate tanning. Ultraviolet light from the sun and tanning beds causes skin cancer and wrinkling. If you want to look like you've been in the sun, consider using a sunless self-tanning product. When using a self-tanning product, you should continue to use sunscreen.

  2. Get vitamin D safely through a healthy diet that includes vitamin supplements. Don't seek the sun.

  3. Generously apply sunscreen to all exposed skin. Before going outdoors, generously apply a sunscreen that has a Sun Protection Factor (SPF) of at least 15 and is broad-spectrum - protects against both ultraviolet (UVA) and ultraviolet B (UVB) rays. While outdoors, re-apply the sunscreen every two hours, even on cloudy days, and after swimming or perspiring.

Dermatologists agree that most people do not apply enough sunscreen to help protect against harmful ultraviolet (UV) radiation.  One ounce, enough to fill a shot glass, is considered the amount needed to cover the exposed areas of the body properly.  So when applying sunscreen, remember to apply it liberally.  Here are a few more tips:

  1. Cover up when you must be in the sun. Wear long sleeves, pants, a wide-brimmed hat, and sunglasses that protect against both UVA and UVB rays.  Here's why:

    • Clothing protects your skin from the sun's harmful rays. The tighter the weave, the more sun protection provided. In fact, clothing plays such an important role in sun protection that clothing designed specifically to protect against the sun, as well as laundry additives created to boost clothing's protective function, are available. Your dermatologist may be able to provide you with more information about these products.

    • A wide-brimmed hat shades your face and neck from the sun's rays. Wide-brimmed means the brim circles the entire hat and shades the face and neck.

  2. Use extra caution near water, snow, and sand. These reflect the damaging rays of the sun, which can increase your chance of sunburn.

More Good Reasons to Practice Sun Protection
Aside from AKs, the sun's UV rays also cause:


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