Sun-damaged skin on the lower legs: what to know

Lower legs may show flat brown spots, mottled colour, dryness, fine lines, or rough areas after repeated exposure. Friction, bites, injury, and inflammation can also leave darker marks, so location alone does not establish the cause. Compare each lesion with nearby skin rather than relying only on colour. A mark that grows, develops an irregular border, becomes scaly or crusted, bleeds, or fails to heal should be assessed; some cancers occur on sun-exposed skin and can be subtle.

Cover exposed lower legs with clothing when practical and use broad-spectrum sunscreen on uncovered skin. Reapply as directed, particularly around outdoor activities. Apply a plain moisturiser to dry areas and avoid aggressive exfoliation over unexplained spots. If the appearance is a concern, a clinician can distinguish sun spots from other pigment or surface conditions and explain whether a topical treatment or procedure is suitable.

Make an appointment for a new persistent lesion or any spot that changes in size, shape, colour, or texture. Bleeding, repeated crusting, tenderness, marked itch, or a sore that does not heal are reasons to seek care. A rapidly evolving lesion merits prompt review. Do not wait for discomfort, because concerning skin changes may be noticed before they hurt.

Ask what is causing the lower-leg changes, whether any area requires a closer examination, and how to protect and moisturise the skin. If treatment is discussed, ask about irritation, healing time, follow-up, and how future exposure could affect the result.