Oroticaciduria

What it means

An increased concentration of orotic acid in the urine.

Orotic acid is an intermediate in the biosynthesis of pyrimidine nucleotides. Some enzymatic deficiencies can cause the excretion of a large amount of orotic acid in the urine and a defect in pyrimidine biosynthesis.

Rare diseases that can present with this5

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Increased urinary orotic acid concentration · Orotic aciduria