Fingernails can split for various reasons. Onychoschizia is a common condition that causes horizontal splits within the nail plate. The condition is sometimes accompanied by onychorrhexis, a condition that causes long-wi... More »

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Brittle fingernails are caused by trauma, overexposure to harsh solvents, recurring exposure to liquids, malnutrition or an underlying health problem, according to NYU Langone Medical Center. Brittle nails are also a nor... More »

To grow long nails naturally, take biotin supplements, avoid nail hardeners, limit professional manicures and avoid harsh chemicals such as cleaners and acetone nail polish removers. Improving the health and strength of ... More »

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Dented fingernails are usually caused by an underlying health conditions, such as psoriasis, eczema, alopecia areata and Reiter Syndrome. These diseases affect the growth of the nail in the nail matrix or cause a loss of... More »

Fingernails are made of multiple layers of a strong material called keratin. Keratin is a protective protein produced by the body. It consists of proteins that form filaments and enzymes. More »

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Lemon juice, whitening toothpaste, hydrogen peroxide with baking soda, denture cleaning tablets, and tea tree oil can whiten fingernails. There are many reasons why fingernails are not as white over time. Nail polish is ... More »

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Discolored fingernails can be a symptom of a fungal infection. There are also a few disorders that can cause nail discoloration, as noted by MedicineNet. More »