Dermoscopy: understanding chaos and clues

In dermoscopy, chaos generally refers to asymmetry in colour or structure: one part of a spot does not resemble another part. Clues are specific visual details that can add concern, such as an irregular pigment pattern, unusual dots or lines, or a blue-white area. These terms describe observations rather than a final diagnosis.

The clinician interprets them alongside the spot's evolution, body site, skin type, and other moles. Some benign lesions are naturally uneven, so a single irregular detail should not be interpreted in isolation.

During dermoscopy, the clinician views the lesion with magnification and illumination that reduce surface reflection. They may compare it with other lesions or with older images. A spot with reassuring features may be documented and monitored. A lesion whose pattern remains concerning may be referred for removal or tissue examination, depending on the clinical judgement.

Keep a simple record of new or changing spots and avoid picking at scabs. At an appointment, describe changes in shape, colour, size, bleeding, crusting, itch, or tenderness rather than relying on a label such as chaos.

Arrange a skin review when a mole becomes asymmetrical, develops new colours or structures, changes noticeably, bleeds without a clear injury, or fails to heal. Prompt assessment is sensible for a fast-changing spot, particularly when its appearance differs from your other moles. A dermoscopy appointment should not be delayed while waiting for a lesion to settle.

Ask what specific asymmetry or structures were seen, whether the lesion can be compared with earlier images, and why monitoring or removal is recommended. Ask how to photograph the area consistently and which changes should lead you to return sooner.