Beau's lines

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Beau’s lines

Horizontal grooves on the fingernails which arise when the nails stop growing due to poor health, first described by Joseph Beau in 1846.

Aetiology
Local infection, trauma or psoriasis; systemic disease—e.g., coronary artery occlusion, hypocalcaemia, diabetes, malnutrition; drugs—e.g., beta-blockers, chemotherapy.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.