text: my urine smells like rotten eggs, why?? i've been peeing in a gallon jug and it smells like rotten eggs when i open the cap to pee again.  is it something i have been eating or do i have a problem? most likely this is not a result of the fresh urine, but the urine that has remained in the gallon jug over time.  i suggest that you have a urine test from your physician to rule out the possibility of infection, especially if you have any other symptoms.  you probably should not be keeping urine in a jug either, as it could become a breeding ground for all sorts of things.    also, certain foods can affect the smell of urine, so if you have been eating anything different, take that out of your diet for a few days and see if it helps anything.  good luck...see a doctor first to rule out any possibilities, but you are probably okay!