Can Sun-Damaged Skin Cause Actinic Keratosis?

An actinic keratosis is often a rough, sandpaper-like patch that may be easier to feel than see. It can be pink, red, tan or close to the surrounding skin and commonly appears on sun-exposed areas such as the face, scalp, ears, forearms and backs of hands.

Photoaging describes the wider effects of accumulated ultraviolet exposure, including uneven colour, fine lines and loss of elasticity. An actinic keratosis is a distinct lesion within that damaged skin. A rough patch is not automatically an actinic keratosis, so diagnosis should be based on examination.

Use shade, protective clothing and broad-spectrum sunscreen on exposed skin. Avoid picking or filing the patch, which can cause bleeding and make it harder to assess. Note its location and whether its texture, colour or size changes.

A clinician may recommend observation, freezing, a prescribed cream, light-based treatment or removal, depending on the number and appearance of lesions. Treatment decisions should follow an examination rather than home diagnosis.

Make an appointment for any persistent rough patch on sun-exposed skin, particularly if it is new or repeatedly catches on clothing. Seek prompt assessment if it becomes thicker, painful, tender, crusted, ulcerated or prone to bleeding, or if a previously treated area returns. Such changes need review because some lesions can progress.

Ask how the lesion was identified, whether you need treatment or monitoring, how to protect the surrounding skin, and which changes should lead you to return sooner.