What Causes Sweet Smelling Urine?

What Causes Sweet Smelling Urine? Sweet-smelling urine may be a sign of uncontrolled diabetes or a rare disease of metabolism. Liver disease and certain metabolic disorders may cause musty-smelling urine. Some conditions that can cause changes in urine odor include: Bladder fistula. What metabolic disease causes sweet-smelling urine? A: If you notice a very distinct