Can certain degree of hair miniaturization present in a normal non balding person?

In general it may be normal to have 10% miniaturized hairs even when you are not balding.  Everyone is different and you may have more or less and this can be normal.

Hairs miniaturize in everyone and balding is often not apparent till 30-50% of the hairs have already done this.  So you need to treat early as prevention.  Best, Dr. Emer.

Yes hair miniaturization can be a very variable phenomenon. We believe it's more like 2% to 12% miniaturization, although such stats are estimates and not analytically derived. Most men have naturally decreasing hair as they age.-many without apparent balding. The tale of balding can be very unpredictable. It is a good rule of thumb to judge by close at photos of relatives such as parents and/or siblings. It is wise to be conservative when estimating future hair loss. Hope for the best but plan for the worst is usually the most prudent way to go.

Examining a patient with very early balding is challenging because you can't easily tell if there is AGA present. However, if there are photos from the past or a very good history one can often determine if early AGA is present. Generally if less than 20 % of the hairs are miniaturized, one is in somewhat of a grey zone as to whether to call it AGA or not. If there is a clear history of reduced density in a patterned region, that increases the likelihood that what one is dealing with is in fact AGA

In the follicular unit, we may see hairs that look miniaturized, but these hairs should never constitute more than 20% of the total hair population or it would suggest early balding.