Beau's lines

Beau's lines
Beau's lines
	Beau's lines on the middle fingernail of the left hand caused by a severe paronychia infection
Specialty	Dermatology

Beau's lines are deep grooved lines that run from side to side on the fingernail or the toenail.^[1] They may look like indentations or ridges in the nail plate.^[2]^: 657

This condition of the nail was named by a French physician, Joseph Honoré Simon Beau (1806–1865), who first described it in 1846.

^ Bellet, Jane Sanders (2021). "Paediatric nail disorders". In Lipner, Shari (ed.). Nail Disorders: Diagnosis and Management, An Issue of Dermatologic Clinics. Philadelphia: Elsevier. p. 232. ISBN 978-0-323-70923-1.
^ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.

[Lipner2021-1] Bellet, Jane Sanders (2021). "Paediatric nail disorders". In Lipner, Shari (ed.). Nail Disorders: Diagnosis and Management, An Issue of Dermatologic Clinics. Philadelphia: Elsevier. p. 232. ISBN 978-0-323-70923-1.

[Fitz2-2] Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). McGraw-Hill. ISBN 0-07-138076-0.

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