What is the white spots on my nails?

Can be fungal: Bright white spots on the nail, almost appearing as if you sprinkled powdered sugar on it can be a superficial fungal infection. If the nail is a normal thickness, this can be the one type of fungus that can respond to topical treatment.

Possible Infection: There are various types of infections. Infections can be due to a fungus, bacterial or due to a virus. The treatment will depend on the type of infection and on what exactly is infected. Have it evaluated by a professional to get the appropriate treatment. By leaving it alone it may get worse.

Injury,fungi,lo zinc: There can be many causes but the most common are injury, nail fungus and zinc deficiency. See http://www.Md-health.Com/white-spots-on-nails.Html ; http://drlwilson.Com/articles/zinc.Htm.