My thinning hair is genetic. I have it in my temples. I have a huge spot on the crown and to the lower right of the crown. I use nioxin now and may have loss hair follicles. Can those grow back? stylist says once he follicule is gone ther is nothing that can be done. I use a semi- permenant by Clairol to cover these spots. I was told that the problem started bc I wore my hair in a top knot for years bc I can not have hair on my neck bc I get to hot. I wear it in a comb at the crown and usuaslly flip the rest up with a barratte(?). I would put the top knot on once my hair air dried for awhile and often left it that way or several days bc I work at home and often never went out. I do not no how long the bald spot was there bc one day my husband said I looked great except for the bald spot. Men.