Actinic Keratosis
Actinic Keratosis — a rough, scaly patch that develops on skin after years of cumulative sun exposure, most often on the face, ears, scalp, backs of the hands, and forearms. It is considered a precancerous lesion because a small percentage can progress to squamous cell carcinoma if left unaddressed. Diagnosis and treatment fall to a dermatologist, not at-home skincare.
Key points
- It results from long-term ultraviolet damage to keratinocytes, so it is most common in fair-skinned people and those over 40.
- Lesions often feel like sandpaper and may be easier to feel than to see, sometimes appearing pink, red, brown, or skin-colored.
- Because a minority can develop into squamous cell carcinoma, any persistent scaly patch should be evaluated by a healthcare professional.
- Daily broad-spectrum sunscreen and sun-protective habits are the primary evidence-based ways to reduce the risk of new lesions forming.
Frequently asked
Is an actinic keratosis the same as skin cancer?
No, it is a precancerous lesion, but because a small proportion can progress to squamous cell carcinoma it should be assessed by a dermatologist.
Can skincare products remove actinic keratosis?
Over-the-counter cosmetic products cannot treat it; medical options such as cryotherapy, prescription topicals, or other procedures are managed by a healthcare provider.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
