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Beau's lines are horizontal, going across the nailline, and should not be confused with vertical ridges going from the bottom of the nail out to the fingertip. These vertical lines are usually a natural consequence of aging and are harmless. [3] [4] Beau's lines should also be distinguished from Muehrcke's lines of the
Then, there’s horizontal nail ridges (lines that run from side to side), known as Beau’s lines. These are less common, but equally pesky. “When horizontal ridges occur in a single nail, it ...
Causes of horizontal ridges in nails. Horizontal riding (also called Beau's lines) is usually caused by things other than aging, most commonly damage to the nail matrix. “If you are looking at ...
Habit-tic deformity is recognizable for its horizontal ridges that create a fir-tree shape. [2] Discoloration along the affected area of the nail is also common. The condition is not to be confused with median nail dystrophy, a similar but rarer condition which additionally includes a canal-like vertical ridge.
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Muehrcke's lines were described by American physician Robert C. Muehrcke (1921–2003) in 1956. In a study published in BMJ, he examined patients with known chronic hypoalbuminemia and healthy volunteers, finding that the appearance of multiple transverse white lines was a highly specific marker for low serum albumin (no subject with the sign had SA over 2.2 g/dL), was associated with severity ...
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When the condition occurs on all the twenty nails of the fingers and toes, it is known as twenty-nail dystrophy, most evident in childhood, [4] favoring males. [ 2 ] [ 5 ] Trachyonychia causes the nails to become opalescent, thin, dull, fragile, and finely longitudinally ridged, and, as a result, distally notched. [ 6 ]