Solar lentigo dermoscopy: what to know

A solar lentigo is usually a flat, brown mark on sun-exposed skin. During dermoscopy, the clinician places a handheld [Dermatoscope](/technology/dermatoscope/) over the area to view structures that are difficult to see with the naked eye. They assess the pigment pattern, colour distribution, borders, and whether the features fit a benign sun spot. Dermoscopy supports clinical judgement but does not make every diagnosis on its own; an atypical or changing mark may need another step.

Bring attention to when the spot appeared, whether it has changed, and any history of intense sun exposure or previous skin lesions. Avoid covering the area with heavy makeup on the day if possible. The clinician may photograph it for comparison, recommend monitoring, or suggest biopsy or [Mole Removal](/treatments/surgical-dermatology/mole-removal/) when its appearance is uncertain. Continue sun protection and avoid trying to lighten or scrape the mark before it is assessed.

Arrange a skin review for a mark that changes in size, shape, colour, or surface, develops a new symptom, or looks unlike your other spots. Prompt review is appropriate for bleeding, persistent crusting, ulceration, or a new irregular dark area. These signs do not prove cancer, but dermoscopy or tissue examination can help clarify the cause.

Does the pattern look like a solar lentigo? Should the spot be photographed or rechecked? What change should prompt an earlier appointment? Would sampling or removal give a clearer diagnosis?