Over a lifetime, repeated episodes of sunburn and unprotected sun exposure can increase a person's risk of malignant melanoma and other forms of skin cancer. As a rule, if you have fair skin and light eyes, you are at greater risk of sun-related skin damage and skin cancers. This is because your skin contains less of a dark pigment called melanin, which helps to protect the skin from the effects of UV radiation.

Symptoms

Sun-damaged skin shows the following symptoms:

• Dry skin - The skin appears dry, flaky and slightly more wrinkled than skin on other parts of your body that have not been exposed to the sun. Dry skin is also one of the most common causes of itching.

• Sunburn - Mild sunburn causes pain and redness on sun-exposed skin. In most cases, there are clear boundary lines where the skin has been protected from the sun by shirt sleeves, shorts, a bathing suit or other clothing. More severe cases of sunburn produce painful blisters, sometimes together with nausea and dizziness.

• Actinic keratosis - An actinic keratosis appears as a small bump that feels like sandpaper or a persistent patch of scaly (peeling) skin that may have a jagged or even sharp surface and that has a pink, yellow, red or brownish tint. At first, an actinic keratosis may be the size of a pimple. Rarely, an actinic keratosis may itch or be slightly tender.

• Long-term changes in the skin's collagen - Symptoms of collagen changes include fine lines, deeper wrinkles, a thickened skin texture and easy bruising on sun-exposed areas, especially the back of the hands and forearms.