Is It Normal for Hairs to Have Varying Diameters?

Hello Sir and thank you for your blog.

I am an 18 year old male with thick dark hair and suffer from moderate hair loss with temple thinning. I have noticed not every hair on my head has the same diameter: they can vary quite dramatically with thick very dark strands and lighter thinner ones. Is this normal ?

Thank you very much for your answer

Yes, it’s normal. We all have varying diameters of hair as different hairs are in different phases of the hair growth cycle (anagen, catagen, and telogen).

If one area is much smaller in diameter (miniaturized) and it occurs in a specific pattern, we call it male pattern baldness.