Beau's lines (crosswise nail plate grooves) are due to severe illness or certain medications. This image displays a horizontal line and groove across the nail typical of Beau's lines. This image displays a horizontal line and groove across the nail typical of Beau's lines.
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Beau's Lines  Information for adults

Picture of Beau's Lines: Beau's lines (crosswise nail plate grooves) are due to severe illness or certain medications. Divider line
Beau's lines (crosswise nail plate grooves) are due to severe illness or certain medications.
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Who's At Risk
People of all ages and ethnic backgrounds can have Beau's lines. Most commonly, they are seen in chemotherapy patients in reaction to a drug.
Last Modified: 22 Dec 2008