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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.
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 ...
Horizontal ridges causes. Horizontal ridges, aka Beau’s lines, often happen when your body undergoes significant periods of stress and your nail stops growing, says Dr. Lal.
Trachyonychia causes the nails to become opalescent, thin, dull, fragile, and finely longitudinally ridged, and, as a result, distally notched. [6] It can be a manifestation of lichen planus , psoriasis , alopecia areata , immunoglobulin A deficiency , atopic dermatitis , and ichthyosis vulgaris .
A lack of vitamin A, vitamin D, or calcium can cause dryness and brittleness. Insufficient vitamin B12 can lead to excessive dryness, darkened nails, and rounded or curved nail ends. Insufficient intake of both vitamin A and B results in fragile nails with horizontal and vertical ridges.
Ridges in your fingernails might alarm you, but it's not always a cause for concern. Here's what the ridges mean and how to treat them, according to experts.
Athletes, especially runners, may be more likely to experience toenail involvement. [10] A portion of patients have onychomadesis recurrently without an obvious cause. [11] One of the most frequent causes of single-digit onychomadesis is local damage to the nail bed. [12] When more than one finger is involved, it may indicate a systemic cause. [13]
In reality, your nails can give you a glimpse into your overall health.