What causes ridges in fingernails?


Quick Answer

According to Mayo Clinic, vertical ridges in fingernails are normal and have no specific cause; however, deeper ridges may occur as someone ages, possibly due to cell turnover. About.com says that less moisture from natural oils may also lead to more prominent ridges as someone ages.

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What causes ridges in fingernails?
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Full Answer

The appearance of horizontal nail ridges, on the other hand, may signify deeper health problems and warrant a doctor consultation, according to Mayo Clinic. MedlinePlus lists surgery, serious illnesses and arsenic poisoning as some causes of horizontal fingernail lines. It also recommends contacting a doctor if nails turn blue, pale or distorted or if white colors develop under the nails.

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