Association of Hydroquinone with Nail Discoloration: A Case Report

The differential diagnosis for orange chromonychia is broad and requires a thorough workup to rule out autoimmune diseases, organ failure (cardiac, hepatic, renal), and vitamin or mineral deficiencies. It is important to consider comorbidities, medications, and contact and exogenous exposures into consideration. Awareness and patient education of this rare side effect may prevent unnecessary distress and, in some cases, avoid unnecessary testing.