Poliosis Runs in the Family
Have you known about Poliosis? It is otherwise called poliosis circumscripta and is a one-of-a-kind hereditary condition that causes an unmistakable white streak in the hair (which is typically an alternate, more obscure variety). This mother passed down her special hereditary condition to her kid, as you can find in this image. They are both shaking dull earthy dark hair with a radiant white streak in the center.
