Miniaturisation
Miniaturisation is the process by which a susceptible follicle produces progressively finer, shorter and lighter hairs over successive cycles, until what it makes is no longer visible.
Where you'll meet it
When a dermatologist looks at your scalp under magnification and describes variation in hair calibre. Mixed thick and thin hairs in the same area is the diagnostic sign of pattern loss.
Why it matters for treatment
Miniaturising follicles are still alive, and both finasteride and minoxidil can push some of them back towards producing normal hair. That is what regrowth means in practice.
A follicle that has been gone for years cannot be revived by anything. This is the whole reason treatment works better the earlier it starts, and why no drug rebuilds a hairline that has been bare for a decade.
What it means for you
If your hair is thinning rather than absent, you are in the window where medication does most. If it is absent, you are in transplant territory.
Related pages
Thinking about a transplant?
The Start Here guide explains why medical treatment comes first, how much donor hair you actually have, and what a transplant can and cannot move.
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