It affects the sebaceous (oily) regions of the scalp. It causes patches of greasy skin covered with itchy, crusty, powdery flakes. The flakes may be white or yellow. Scratching these spots can ...

At birth, there are 2 waves of scalp hair growth. The earliest wave of growth is the hair over the frontal and parietal regions of the scalp. This hair is already converting to telogen hair and ...