Sun burn spot: what to know

After a burn, inflammation can leave an area darker or lighter than nearby skin as it settles. Repeated ultraviolet exposure can also produce flat, well-defined brown marks known as sun spots, often on the face, hands, shoulders, or forearms. A photoaging pattern may include several marks and uneven skin tone. Colour alone cannot identify the cause: note the spot’s border, surface, symptoms, and whether it is changing.

Do not scratch, pick, or apply strong lightening products to recently burned skin. Use a bland moisturiser if the area is dry, and protect it from further exposure with shade, clothing, and broad-spectrum sunscreen used as directed. Once the skin is fully healed, a dermatologist can discuss options such as a chemical peel, IPL photofacial, picosecond laser treatment, or cryotherapy for a confirmed benign sun spot. These treatments are not interchangeable and may be unsuitable for irritated or darker-toned skin without careful assessment.

Book a skin check for a mark that grows, changes shape or colour, develops a rough or crusted surface, repeatedly bleeds, becomes tender, or fails to heal. Seek more prompt advice if one area looks distinctly unlike your other marks. A photograph with a date can help you describe change, but it should not replace an examination.

Ask whether the mark fits a sun spot or another diagnosis, whether it needs monitoring or sampling, and which treatment is safest for your skin type. Tell the clinician when it appeared, what changed, and whether the skin was burned before the mark developed.