????? ??? ?? ?? ?? ? ?? ??? ?? ???? , ?? ??? ????? ??? ?? ?? ?? ????? ??? ?? ?? ?? ???? ?? ??? ?? ??? ??? ?? ??? ? ??? ??? ?? ????.Trichothiodystrophy, generally referred to as TTD, is actually a unusual inherited ailment that affects several portions of the body. The hallmark of this affliction is hair that is definitely sparse and simply broken.