Hi im 24yr old female,52kg and 150cm tall.my problem that i have is when ever i comb my hair ther alot of hair on the comb,even if i wash it hair would b in da basin its very fragile.i have a bald patch at the back of my head its grows but than i get dat patch at the same spot.my hair fell out in da center so its very short there and i must always try to cover.i was already at dermatologist a yr ago n prescribed.it helped to a point but than i get dat patch and my hair breaks.i have been tryin for years to let it grow longbut it dusnt grow very very slow n it stays at dat length