If I’m Losing Hair, Will My Newly Grown Hairs Come in Miniaturized?

Hi, I am a 20 years old male and recently I have notice my hair become finer and smoother all over my head even on the back and permanent area. Can miniaturization affect both existing hair and new grow hair in the same time?

Thank you very much.

Maybe, but if you are indeed thinning in the back (permanent) area, then you probably do not have genetic male pattern hair loss. Hair loss in the permanent zone is likely something else, so it sounds like you need a good examination and a diagnosis.