My 8 year old son has tiny pen-pointsized dots on his nails. not white dots. not on his thumbs.

Nail lesions: The description of lesions is a bit unclear. We need to know if they are pits on the nail or discoloration on/under the nail, number of nails involved, duration of problem, other new findings in nails, general health status etc. You can re-submit your question with more information or just consult a physician personally as diagnosis cannot be provided on this forum. Take care.