Rare diseases · Sign or symptom
Increased level of methylsuccinic acid in urine
HP:0410153
What it means
The concentration of methylsuccinic acid in the urine, normalized for urine concentration, is above the upper limit of normal.
Rare diseases that can present with this1
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 level of pyrotartaric acid in urine
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Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.