????? ??? ?? ?? ?? ? ?? ??? ?? ???? , ?? ??? ????? ??? ?? ?? ?? ????? ??? ?? ?? ?? ???? ?? ??? ?? ??? ??? ?? ??? ? ??? ??? ?? ????.Trichothiodystrophy, frequently called TTD, is usually a uncommon inherited condition that has an effect on many portions of your body. The hallmark of the affliction is hair that may be sparse and simply damaged. [from