Webhave you ever noticed a fishy odor after eating seafood? It's also called fish odour syndrome. We explain the likely reasons your urine smells fishy, from minor (dehydration) to serious (trimethylaminuria).

Many people experience a peculiar smell in their urine after consuming seafood,. If so, you’re not alone. Webtrimethylaminuria (tmau) is an uncommon condition that causes an unpleasant, fishy smell. Sometimes it's caused by faulty genes that.