What should you know about yellow, cloudy, smelly urine?

A strong smell can occur when urine is concentrated, after certain foods, or with some medicines and supplements. Cloudiness may come from crystals, mucus or cells. A urinary tract infection can present with cloudy, stronger-smelling urine alongside burning, urgency, frequent urination or lower abdominal discomfort. Kidney infection can add fever, chills, nausea or pain in the side or back. Odour and colour alone cannot confirm infection.

Consider recent fluid intake, foods, vitamins, medicines and whether the change is present in more than one sample. Drink your usual fluids unless you have a restriction, and do not use someone else’s antibiotics or leftover treatment. Arrange a medical review if the smell or cloudiness persists, returns, or comes with burning, urgency or discomfort. A clinician may request a clean urine sample to guide treatment.

Get urgent care if these urine changes occur with fever, shaking chills, side or back pain, vomiting, confusion, fainting, severe weakness or rapidly worsening illness. Inability to pass urine or visible blood needs prompt assessment. If you are pregnant and develop urinary symptoms, contact a clinician promptly because infection may need early treatment.

Ask whether your symptoms fit a urinary tract infection, whether a urine test is needed, whether a medicine or food could explain the smell, which pain relief is suitable, and which warning signs require urgent care.