Which skin condition is characterized by rough areas from sun exposure?

Actinic keratosis is a skin condition that arises as a direct result of prolonged sun exposure, typically manifesting in rough, scaly patches on the skin. These areas are a consequence of the damage caused by ultraviolet (UV) radiation, which affects the skin cells’ structure and function over time. Actinic keratosis is often considered a precancerous condition, as it can potentially develop into squamous cell carcinoma if left untreated.

The rough texture is a hallmark feature, making it easily distinguishable from other skin conditions. Unlike acne, which mainly involves the hair follicles and oil glands, or psoriasis, which is characterized by silvery scales and systemic inflammation, actinic keratosis specifically presents as rough patches on sun-exposed areas such as the face, ears, and back of the hands. Rosacea is primarily characterized by facial redness and visible blood vessels, not rough areas due to sun exposure. Thus, actinic keratosis is accurately identified as the condition characterized by rough areas resulting from sun damage.