Actinic keratosis

Actinic keratosis (AK) is a precancerous skin condition that causes rough, scaly patches to develop on the skin. AKs are most commonly caused by long-term exposure to ultraviolet (UV) radiation from the sun.

Long-term exposure to ultraviolet (UV) radiation from the sun.

AKs are most common in people who are over 40 years old and who have had a lot of sun exposure.

Most AKs do not require treatment. However, if an AK is large, bothersome, or has an irregular appearance, a doctor may recommend treatment. Treatment options include freezing with liquid nitrogen, scraping with a curette, or applying a topical medication.

Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition.