Fish Odor Syndrome - Causes

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If known, what was the cause of your fish odor syndrome?

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What causes fish odor syndrome (trimethylaminuria)?

Although gene mutations account for most cases of trimethylaminuria, the condition can also be caused by other factors. A fish-like body odor may result from an excess of certain proteins in the diet or from an increase in bacteria that normally produce trimethylamine in the digestive system. A few cases of the disorder have been identified in adults with liver or kidney disease. Temporary symptoms of this condition have been reported in a small number of premature infants and in some healthy women at the start of menstruation.

Return to Fish Odor Syndrome (Trimethylaminuria)

See what others are saying

Comment from: Ines, 35-44 Female (Patient) Published: September 23

I have had smelly sweat and armpit, and vaginal odor. It started when I gave birth to my eldest son and since then I get smelly specially in my underarm, even when I put deodorant I am still smelly. I don't talk to people or go to parties anymore because I was afraid and got embarrassed that someone will smell me and people will stay away from me and call me smelly armpit. I don't know what to do, I still have this fish odor syndrome.

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Comment from: hay, 65-74 Female (Patient) Published: April 11

I have had temporary fish odor syndrome. I first noticed the problem in my teens. I showered at least twice a day and always wore clean cloths. I found that sex was a trauma and anxiety were trigger points. Fortunately I rarely experience the symptoms since I reached my 60s.

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