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  2. Leukonychia - Wikipedia

    en.wikipedia.org/wiki/Leukonychia

    It is also caused by trauma. In most cases, when white spots appear on a single or a couple of fingernails or toenails, the most common cause is injury to the base (matrix) of the nail. When this is the case, white spots disappear after around eight months, which is the amount of time the nails take to regrow completely.

  3. Green nail syndrome - Wikipedia

    en.wikipedia.org/wiki/Green_nail_syndrome

    Green nail syndrome is an infection that can develop in individuals whose hands are frequently submerged in water resulting in discolouration of the nails from shades of green to black. [ 3 ] [ 4 ] It may also occur as transverse green stripes that are ascribed to intermittent episodes of infection. [ 3 ]

  4. What Does It Mean if My Fingernails Are a Weird Color?

    www.aol.com/news/does-mean-fingernails-weird...

    Doctors explain the different causes of nail discoloration, and what to do in each case. Are your fingernails yellow, brown, black, or another color? Doctors explain the different causes of nail ...

  5. Nail disease - Wikipedia

    en.wikipedia.org/wiki/Nail_disease

    Onychorrhexis also known as brittle nails, is brittleness with breakage of fingernails or toenails. Paronychia is a bacterial or fungal infection where the nail and skin meet. Koilonychia is when the nail curves upwards (becomes spoon-shaped) due to an iron deficiency. The normal process of change is: brittle nails, straight nails, spoon-shaped ...

  6. Muehrcke's nails - Wikipedia

    en.wikipedia.org/wiki/Muehrcke's_nails

    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 ...

  7. Onychomycosis - Wikipedia

    en.wikipedia.org/wiki/Onychomycosis

    Onychomycosis, also known as tinea unguium, [4] is a fungal infection of the nail. [2] Symptoms may include white or yellow nail discoloration, thickening of the nail, and separation of the nail from the nail bed. [2]

  8. Nail clubbing - Wikipedia

    en.wikipedia.org/wiki/Nail_clubbing

    When the distal phalanges (bones nearest the fingertips) of corresponding fingers of opposite hands are directly opposed (place fingernails of same finger on opposite hands against each other, nail to nail), a small diamond-shaped "window" is normally apparent between the nailbeds. If this window is obliterated, the test is positive and ...

  9. Mees' lines - Wikipedia

    en.wikipedia.org/wiki/Mees'_lines

    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]