Can trauma cause a white streak in someone's hair?

i'm writing a character and i'm wondering if extreme trauma can cause a white streak in someone's hair, it's fantasy so it doesn't need to be something that is particularly likely to happen, but it should be possible

Can trauma cause a white streak in someone's hair?

I have heard of it happening to rare trama victims.

Can trauma cause a white streak in someone's hair?

I don't know if there is a factual basis for going gray (or white) after trauma, but there are a lot of fiction writers who have used the phenomenon in their stories. So, fact or not, I think it would be acceptible.

Can trauma cause a white streak in someone's hair?

My anatomy teacher says it is possible, but it can not appear overnight. It will occur overtime due to psychological trauma or a mutation.