????? ??? ?? ?? ?? ? ?? ??? ?? ???? , ?? ??? ????? ??? ?? ?? ?? ????? ??? ?? ?? ?? ???? ?? ??? ?? ??? ??? ?? ??? ? ??? ??? ?? ????.Trichothiodystrophy, generally referred to as TTD, is usually a unusual inherited condition that influences numerous portions of the body. The hallmark of this ailment is hair which is sparse and simply broken. [from Me