Does kidney infection cause cloudy urine?

Kidney infection often causes a combination of symptoms rather than a change in urine alone. Possible features include fever, chills, pain in the back or side, burning while urinating, frequent urination, nausea, or feeling ill. Dehydration, crystals, some medicines, and contamination of a sample can also change urine's appearance. A clinician may need a fresh urine sample to check for infection, blood, and other clues.

Arrange medical advice if cloudy urine persists or occurs with pain, fever, chills, burning, or a strong urge to urinate. Provide a clean urine sample if requested and describe when the change began. Drink normally unless you have been given fluid restrictions. Do not use leftover antibiotics; the appropriate medicine depends on the suspected infection and your health history.

Seek urgent help if cloudy urine is accompanied by severe back or side pain, high fever, shaking chills, repeated vomiting, confusion, faintness, or inability to pass urine. These symptoms can indicate a kidney infection that needs rapid treatment or a blockage affecting urine flow.

Ask whether you need urine culture or other tests, whether the sample should be repeated, and how to tell if treatment is working. Ask which symptoms should lead you to return urgently and whether your existing medicines affect the plan.