Low thyroid,: Protein deficiency, low thyroid or lack of enzymes in stomach can lead to brittle nails. Test for thyroid, and iron levels are indicated. If normal, a trial of digestive enzymes may be helpful.See dermatologist for examination, history and blood tests.
Answered 11/28/2017
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A doctor has provided 1 answer
A doctor has provided 1 answer
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A doctor has provided 1 answer
3 doctors weighed in across 2 answers
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