I know Cara, so was I ! Just mentioned it in passing to the Dr whilst we were getting some shots. The Dr had to look it up !!!
My child had more like 10 grey hairs.
Taken from above article.
"Gray hair in a child should be investigated. When I see a child with gray hairs in the office, I look to three sources to try to determine the underlying cause. First, I find out what I can about the family history. Next, I perform a thorough physical examination looking for helpful clues. Finally, I obtain three laboratory tests: a vitamin B12 level, a complete blood count (CBC), and a thyroid function panel."