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Fingernail ridges can be easily removed by buffing the fingernails with a four-sided nail file. Nails naturally develop vertical ridges as people age and applying vitamin E oil helps to moisturize the nails and prevent f... More »

Vertical ridges observed on fingertips are predominately caused by growing older. The medical term onychorrhexis is used to describe long, tiny, raised lines that run up and down the length of the nail. More »

Onychorrhexis is the medical diagnosis for brittle fingernails that feature vertical ridges, and the primary cause is unusual dryness within the nail. Other causes include malnutrition, endocrine disorders, skin conditio... More »

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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 natu... More »

Fingernails and toenails marked by horizontal waves or ridges are typically the result of the medical condition known as Beau's lines, according to Skinsight. An abrupt interruption of nail keratin synthesis causes the w... More »

Horizontal ridges on nails, often called Beau's lines, are often the sign of a health problem, according to MedlinePlus. These ridges occur after an illness or injury to the nail and sometimes result from chemotherapy or... More »

Vertical or lengthwise ridges in the nail extending from the cuticle to the tip are primarily attributed to aging, but they also can result from trauma or an underlying medical condition, according to MedicineNet. These ... More »