The Difference Between New Growth and Miniaturized Hairs

How do you tell the difference between miniaturization and new growing normal hair or the beginning of regrowth from treatment?

New growing hairs are thick, while miniaturized hairs are thin. Under a microscope, a hair that is growing from the scalp will have the same thickness as a hair that is fully grown — it’ll just be shorter. A miniaturized hair will have a thinner shaft and will look more translucent.