Originally posted by: nickhairy
Ive got very thin hair (shafts) on my crown. Does propecia open up the follicle and cause new hair to have a thicker shaft or does it simply prevent the existing hair from falling out?
I searched but could not find an answer to this specific question.
hi, a few facts on male pattern hair loss
nothing will stop hair falling out, as it is a natural part of the hair growth cycle,
every healthy hair goes through a growing phase, then after 2 to 4 years or so it falls out, then it goes through a resting phase for several months, then starts it's growing phase again, you only have about 70% of active follicles actually growing hair at any one time
what we generally call "Hair Loss" should really be termed "Hair Miniaturization"
in some men with DHT sensitive follicles, the hair grows back a little thinner each time it goes through a cycle, until the hair that's produced is nothing more that fine fluff.
this is how male pattern baldness works, it's not because it falls out as such
propcecia reduces the effect of DHT on those sensitive follicles which can allow the hair shaft to become thicker over the next growth cycles, generally speaking it is most successful at preventing further miniaturization