6 Reasons Your Pee Smells & What To Do, According To Urologists

“Sweet-smelling urine should raise the concern for diabetes, and you should visit your doctor for a simple urine dipstick test,” Brandeis says. “In the absence of a diet heavy in asparagus, Brussels sprouts, onions, garlic, or cumin, foul-smelling urine should raise concern for a urinary tract infection,” he adds.