My DS is 7 and a year ago started developing a grey patch of hair on his head.
He's on a waiting list to see a dermatologist about it. He isn't particularly bothered by it at this stage.
He's had his hair cut short today and I've noticed a dark streak of hair, very thin line going vertically down near the grey patch.
This made me check back through photos and it's been there since at least the start or May as it was present in the jubilee pics, I didn't notice at the time. He has it cut every 3 -4 weeks and the line is present after every single cut. Its so odd!
Any ideas?