What Should You Know About a Urine Analysis Test?

A urine analysis test checks a urine sample for physical, chemical, and microscopic changes that may help explain symptoms or monitor health. It may be requested for burning during urination, frequent urination, blood in the urine, back or side pain, fever, swelling, or changes found during a routine assessment. The test can support evaluation of a urinary tract infection, kidney infection, kidney disease, or diabetes, but a result is interpreted alongside your symptoms, examination, and medical history.

The appearance may be described by colour, clarity, and concentration. A dipstick can look for blood, protein, glucose, ketones, acidity, and signs that suggest inflammation or infection. Microscopy may identify red blood cells, white blood cells, crystals, or other material. Some findings have several possible explanations: dehydration can make urine more concentrated, exercise or menstrual blood can affect a sample, and medicines or foods can change its colour. A urine culture may be added when infection is suspected; it checks whether bacteria grow and can help guide antibiotic treatment. One unusual result does not establish a diagnosis by itself.

For background on the test and its use, see [Urine Test](/treatments/diagnostics-and-screening/urine-test/).

Follow the laboratory or clinic instructions. Unless you were specifically told to restrict fluids, drink normally rather than forcing extra water. Wash your hands, clean the genital area as instructed, and begin urinating into the toilet. Collect the midstream portion in the sterile container without touching its inside, then close it firmly. Tell the clinician if you are menstruating, pregnant, taking medicines, or have used antibiotics recently, because these details can affect interpretation. Return the sample promptly or store it only as instructed.

Seek prompt medical advice for fever with urinary symptoms, pain in the back or side, vomiting, visible blood in the urine, confusion, or feeling markedly unwell. These symptoms can occur with a kidney infection or another problem needing assessment. Seek urgent help if you cannot pass urine, have severe pain, or become faint or confused. If symptoms continue despite an initial normal test, arrange follow-up because a single urine sample may not explain every urinary problem.

Learn more about [Urinary Tract Infection](/conditions/urinary-tract-infection/) and [Kidney Infection](/conditions/kidney-infection/) if your clinician is assessing infection.

Ask which part of the result was outside the expected range and what other explanations are possible. You can also ask whether you need a repeat clean-catch sample, a urine culture, blood tests, or imaging; whether any medicine could affect the result; and when you should expect follow-up. If urinary difficulty is part of the problem, ask whether prostate enlargement, such as [Benign Prostatic Hyperplasia](/conditions/benign-prostatic-hyperplasia/), needs consideration.