Actinic keratosis is a rough, scaly patch on the skin that develops due to prolonged exposure to ultraviolet (UV) radiation from the sun or tanning beds. It often appears on sun-exposed areas, such as the face, ears, scalp, and hands. These lesions can vary in color, ranging from pink to red or brown, and may feel dry or itchy. While actinic keratosis is not cancerous, it can sometimes progress to squamous cell carcinoma, a type of skin cancer. Regular monitoring and treatment by a healthcare professional are important to prevent potential complications. Common treatments include topical medications, cryotherapy, and laser therapy.