What should you know about persistent cloudy urine?

Urine can look cloudy when it is concentrated, contains inflammatory cells, crystals or blood, or mixes with discharge. Dehydration may make urine darker and stronger-smelling. A urinary tract infection can cause cloudiness with burning, urgency, frequency or lower abdominal discomfort. A kidney infection may add fever, chills, nausea or pain in the side or back. Appearance alone cannot distinguish these causes, and some temporary changes settle after drinking normally.

Notice whether cloudiness appears in every sample and record colour, smell, pain, urgency, frequency, fever and fluid intake. Drink regularly unless a clinician has told you to restrict fluids. Do not use leftover antibiotics; treatment depends on the cause and a urine test may be needed. Arrange a review if the change persists, returns, or occurs during pregnancy, in a child, or alongside a long-term medical condition.

Seek prompt medical care for cloudy urine with fever, chills, side or back pain, vomiting, visible blood, confusion, faintness or very little urine. Urgent assessment is especially important when symptoms are worsening or you feel systemically unwell, because infection involving the kidneys can need rapid treatment.

Ask whether you need a urine dipstick or culture, which symptoms suggest infection beyond the bladder, and how to manage fluids while waiting. Mention pregnancy, recent antibiotics, kidney problems and any unusual discharge.