Some Miniaturized Hairs Are Normal in the Hairline?

Hi,
i just have a question. I am almost 21, my hair looks good, but the thing that worries me is that I have a widows peak and in the widows peak I noticed that there are like some vellus hairs that are almost invisible between the terminal hairs. The rest of my hair is thick and healthy but the thing that worries me is that they can be miniaturized hairs. I also notices some very fine hairs that dont grow more than 0.5 cm in the very front of the hairline. Is this normal? You said that it is normal some miniaturization at the beginning of the hairline.

Yes, there are vellus hairs in the frontal hairline and that is normal. This is not necessarily miniaturization or balding, but if the miniaturization continues well beyond the front hairline (say 1/2 to 2/3rds inch back) there is reason to take notice. Keep having your hair mapped out for miniaturization at least once a year to see if there is the beginnings of genetic hair loss.