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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 fingernails.
First, a crash course on what fingernail ridges even are: Vertical nail ridges (lines that run from your cuticle to the tip of your fingernail) are super-common, and are a normal sign of aging.
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.
This could lead to low levels of oxygen, which causes the skin and tissues to become pale. ... Brown spotted nails Dark brown or black vertical lines on the nail bed should never be ignored. This ...
Mees' lines can look similar to injury to the nail, which should not be confused with true Mees' lines. [1] Mees' lines appear after an episode of poisoning with arsenic, [2] thallium or other heavy metals or selenium, [3] opioid MT-45, and can also appear if the subject is suffering from kidney failure. [4] They have been observed in ...
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 ]
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. [3] [2] The deformity is most commonly seen on the thumbs, but is also less commonly seen on other nails. [2]
"Trauma could cause white spots on the nails or even white lines (leukonychia)," says Dr. Mendeszoon. "Bumping one’s toe or being stepped upon may cause injury to the nail plate and dermis ...