Asparagus Pee Why Only Some People Smell It Garden Asparagus can cause a distinctive smell inside your pee-pee. It is widely known that consuming this green vegetable can lead to a pungent fragrance while visiting the bathroom. If you observe an unappealing odor once you've indulged comprising asparagus, don't panic. It is simply a normal reaction that occurs physiologically. Be reassured that the smell is harmless and will fade over time.