Actinic keratosis (AK) is an extremely common condition of the skin. It is due to chronic sun exposure and the ultraviolet radiation from tanning booths. Occasionally, X-rays or some chemicals like ...

What is actinic keratosis? An actinic keratosis is a precancerous skin lesion. These lesions often appear as rough spots on the skin and are caused by sun exposure or indoor tanning. Untreated, they ...

Websites help consumers identify actinic keratosis. Each year, more than 3.5 million new cases of skin cancer are diagnosed and 2.2 million people are treated for the disease in the U.S., according to ...