What is the health significance when fingernails begin to curve down shortly above the finger?

This indication pertains to a fifty year old woman who has only just experienced this indication for the first time.What is the health significance when fingernails begin to curve down shortly above the finger?
http://www.indoindians.com/health/finger鈥?/a>What is the health significance when fingernails begin to curve down shortly above the finger?
i agree with the above girl.
My mother's doc said it was lack of calcium, if they are turning a yellow color you have a fungi which is treatable. The drug store has has different brands.

whitening cream