Definition

Actinic keratosis (AK) are precancerous skin lesions that develop due to excessive exposure to ultraviolet (UV) radiation from the sun or tanning beds. They typically appear on areas of the skin that receive the most sun exposure, such as the face, scalp, ears, neck, hands, and arms.

AKs usually appear as rough, scaly patches that may be red, pink, or brown in color. They can be flat or slightly raised, and they may feel rough or sandpapery. While AKs themselves are not cancerous, if left untreated, there is a small chance that they can develop into squamous cell carcinoma, a type of skin cancer.

Early detection and treatment of AKs is important to prevent skin cancer. Treatment options for AKs may include freezing with liquid nitrogen, topical medications like imiquimod or fluorouracil, or scraping or surgical removal.

Disclaimer: Please consult a dermatologist for diagnosis and treatment of actinic keratosis. If you have any concerns about sun exposure or potential skin cancer, it is important to see a doctor for a proper evaluation.