Found a grey hair on DD aged 7

[washingonagain]

Should I be concerned?

No. It's a strand with no pigment

I hope not. My ds (10) has a grey patch of hair on the back of his head, around the size of a 10p.

Worried about what?

This is totally normal.

Maybe she’s secretly 70

Found one on my son when he was five. He's nineteen now and doesn't have any!

Ok thanks everyone. I googled and it said could be vitamin B12 deficiency.