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. They may look like indentations or ridges in the nail plate.: 657
This condition of the nail was named by a French physician, Joseph Honoré Simon Beau (1806–1865), who first described it in 1846.