What causes the little white dots on finger nails?

Me and my friends were discussing this on the bus yesterday and they said it was from shuting your fingers in doors, but i know it isn't.


Please help!


I will give 10 points to the person with the best answer!What causes the little white dots on finger nails?
White splotching on the nails in the absence of trauma is indicative of a period of nutrient depletion; specifically sources of keratin.





In matters of traumatic origin, leukonychia (or Leuconychia) is the medical term for white discoloration appearing on nails. It is derived from the Greek words Leuko white and Onyx nail. The most common cause is injury to the base of the nail (the matrix) where the nail is formed.What causes the little white dots on finger nails?
It is damage from something striking your nails. So yes that something could be a door hitting them.
Either lack of calcium or too much calcium, I forget which.





EDIT: Shutting your fingers in a door would probably cause cracked nails or bleeding (possibly also black or bruised nails).
The sex glands become more active around the age of 12, when the monthly cycle starts in girls and semen-(sperms) starts multiplying and maturing in boys. It is like a raw clay brick and requires heat treatment. It is worth noting that semen is not stored anywhere in the body but it becomes syndrome of the body and can be seen as pure white half moon (white dots) in the nails.
What causes the white spots on fingernails? Well, your friends are kind of right and wrong! The spot doesn't have to be from that! It could be from ANY injury involving your WHOLE finger! Hope I helped!