A diagnosis of<unk>  is typically made after a positive routine test for reducing sugars in the urine. An additional test with glucose oxidase must also be carried out (with a negative result indicating<unk>  as a positive test for reducing sugars is most often a result of glucosuria secondary to diabetes mellitus. The excretion of fructose in the urine is not constant, it depends largely on dietary intake.
Essential fructosuria
Aspartylglucosaminuria
Hawkinsinuria
Alkaptonuria
Orotic aciduria
Urocanic aciduria
Glycosuria
Dicarboxylic aminoaciduria