Hypomethioninemia

What it means

A decreased concentration of methionine in the blood.

Normal methionine blood levels are around 30 micromole per liter.

Rare diseases that can present with this4

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, and Orphanet separately records 1 disease where this sign is specifically absent. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Decreased serum methionine