Sometimes it's caused by faulty genes that. We explain the likely reasons your urine smells fishy, from minor (dehydration) to serious (trimethylaminuria). It's also called fish odour syndrome.

If so, you’re not alone. Webhave you ever noticed a fishy odor after eating seafood? Many people experience a peculiar smell in their urine after consuming seafood,. Weburine smells are normally different from person to person, but pee that smells strong, sweet, fishy or like ammonia might tip you off to a health issue.