What Is a Jellinek Sign (Lid Pigmentation)?
Jellinek sign is brownish eyelid skin darkening that is most often linked to thyroid eye disease associated with Graves disease. The pigmentation usually shows up on the upper eyelids or near the eyelid crease. The color change can appear alongside other thyroid eye findings such as lid retraction, eyelid swelling, dryness, or irritation. The sign itself is not dangerous, but it can be a clue that thyroid-related eye disease is active. An eye exam and thyroid evaluation can help connect eyelid changes with the broader clinical picture.
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