Is it unhealthy for urine to smell bad?

In certain cases, odorous urine can indicate poor health conditions, such as dehydration and liver disease, which require immediate medical treatment, explains Healthline. Foul-smelling urine can also indicate a bacterial urinary tract infection that may require treatment with antibiotics.

It is important for individuals with odorous urine to seek medical attention if symptoms are accompanied by fever, back pain, chills or urinary burning, explains MedlinePlus. Urine that gives off a sweet aroma may indicate uncontrolled diabetes, while musty-smelling urine may signify a metabolic disorder. In certain cases, changes in urine odor are caused by non-harmful factors, such as vitamins, consumption of certain foods and medications.