White flakes on fingernails, come off while scraping. What is this?

Hello,
Thanks for posting your query.
Brittle, flaking nails indicate a nail damage or trauma.
Medical conditions such as hypothyroidism or hyperthyroidism, malnutrition, vitamin deficiencies and skin conditions, including psoriasis, may contribute to brittle, flaking nails. Exposing your nails frequently to water, usually through hand washing, can also cause brittle, flaking nails. Other causes include exposing your nails to chemicals including cleaning chemicals, nail polish and nail polish remover.
Apply a lanolin-enriched lotion or one containing alpha-hydroxy acids to brittle, flaking nails after bathing. Natural treatments for brittle, flaking nails include vitamin supplements of calcium, biotin, iron, silicon, vitamin A and zinc.
You can consult a dermatologist for specific treatment if these measures do not help.
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Dr. Praveen Tayal.

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