????? ??? ?? ?? ?? ? ?? ??? ?? ???? , ?? ??? ????? ??? ?? ?? ?? ????? ??? ?? ?? ?? ???? ?? ??? ?? ??? ??? ?? ??? ? ??? ??? ?? ????.Trichothiodystrophy, usually referred to as TTD, is actually a uncommon inherited condition that influences numerous elements of your body. The hallmark of the condition is hair that is sparse and simply damaged. [from