The Smell of Asparagus Urine Part 1 ChemistryViewsAsparagus may cause a unique scent in your pee-pee. It is commonly known that consuming this green vegetable can lead to a strong whiff during a trip to the bathroom. If you observe an unpleasant odor following a delicious dish including asparagus, there's no need to worry. It is merely a natural reaction that occurs internally. Be reassured that the scent is not dangerous and will fade over time.