The main way to diagnosis<unk>  is simply through increased urinary excretion of cystathionine. In some cases, a genetic test is employed.
Cystathioninuria
Hawkinsinuria
Orotic aciduria
Aspartylglucosaminuria
Urocanic aciduria
Alkaptonuria
Alpha-aminoadipic and alpha-ketoadipic aciduria
Tyrosinemia