Brittle fingernails: There are many causes of breaking/brittle nails, including dryness of the nails, chemical exposure, trauma, fungal infections, endocrine/hormonal disorders. In people with systemic diseases, causes also include insufficient blood supply to the nails, certain medications, among others. If the brittle nails are of recent onset, please have it evaluated by a dermatologist.
Answered 12/9/2013
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