These dry, scaly patches or spots are considered the earliest stage in the development of skin cancer. In rare cases, an actinic keratosis (AK) can progress to a type of skin cancer called squamous cell carcinoma (SCC).
People who get AKs usually have fair skin. Most people see their first AKs after 40 years of age because AKs tend to develop after years of sun exposure.
Actinic Keratoses in Teens
But even teens can have AKs when they live in sunny areas or use indoor tanning. AKs form on skin that gets lots of sun exposure, such as the head, neck, hands, and forearms. Because AKs increase the risk of getting SCC, AKs are usually treated.
Prevention of Actinic Keratoses
Proper use of sunscreens can help prevent AKs.