What are the little white dots on fingernails?

Question: I've had a bunch of these after I came back from vacation and I don't know why can someone explain this to me?

Answers:
http://www.webmd.com/content/article/42/...

This website has a very good explanation.

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could be a number of things, but alot fo the time white dots appear because of some type of trauma to your nail matrix at the back of the nail. when it grow out it looks white.

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Zinc deficiency.

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I get these when I'm anaemic. The doctor told me I needed more iron, so try getting some meat!

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calcium deposits

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Could be a zinc deficiency.

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