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Genetic and Rare Diseases Information Center (GARD)

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Other Names for this Disease
  • Fish malodor syndrome
  • Fish odor syndrome
  • Stale fish syndrome
  • TMAU
  • TMAuria
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Your Question

Can the high levels of trimethylamine and fishy smell just involve the urine?

Our Answer

We have identified the following information that we hope you find helpful. If you still have questions, please contact us.

Can the high levels of trimethylamine and fishy smell just involve the urine?

Yes, it is possible for the fish-like smell to just involve the urine, as symptoms vary from person to person in trimethylaminuria.[1] The accumulated trimethylamine may also be released in the person's sweat, reproductive fluids, and breath, giving off a fish-like odor.[1] If you or someone you know is concerned that they may have trimethylaminuria, we recommend speaking with a healthcare provider.
Last updated: 1/27/2014