Overview
Urine tests are laboratory or point-of-care tests done on urine to look for changes that may signal a health problem. Common types include dipstick testing, urinalysis under a microscope, urine culture, pregnancy testing, and tests for substances such as proteins or medicines. A healthcare professional may order a urine test during a routine check, when symptoms are present, or to monitor an existing condition.
Who Is Affected
People of all ages may need a urine test, including children, adults, and older people. Urine testing is commonly used in primary care, emergency care, prenatal care, and hospital settings. Some people need urine tests more often, such as those with diabetes, kidney disease, urinary symptoms, or pregnancy.
Diagnosis and Tests
For many urine tests, you will be asked to pass urine into a sterile cup, often using a midstream clean-catch method to reduce contamination. The sample may be tested right away with a dipstick, examined in a lab, or cultured to check for bacteria. Depending on the reason for testing, you may also need blood tests, imaging, or repeat urine samples at different times of day.
Living With It
If you need repeat urine testing, it can help to understand why the test is being done and what might affect the result. Follow the collection instructions carefully, and tell the healthcare professional about medicines, supplements, menstruation, heavy exercise, or recent illness. Keeping track of symptoms such as pain, fever, swelling, or changes in urine can also be useful.
Diet and Lifestyle
What you eat and drink can sometimes affect urine test results. Drinking too little fluid can make urine more concentrated, while some foods, vitamins, and medicines may change color or chemical findings. Ask whether you should avoid certain foods, intense exercise, or non-prescription products before the test.
When to Seek Medical Care
Seek medical care if you have symptoms such as pain or burning when passing urine, blood in the urine, fever, flank or back pain, swelling, trouble passing urine, or very frequent urination. You should also contact a healthcare professional if a home urine test is positive or unclear and you need guidance on next steps. Abnormal urine test results should be discussed in context rather than interpreted alone.
When It May Be an Emergency
Urgent evaluation may be needed if urinary symptoms happen with high fever, severe back or side pain, confusion, vomiting, inability to pass urine, severe dehydration, or a large amount of blood in the urine. Emergency care is also important if the person is pregnant, very young, older, or has a weakened immune system and appears seriously unwell. These situations can point to serious infection, blockage, bleeding, or other urgent problems.
Questions to Ask a Healthcare Professional
You may want to ask what type of urine test is being done, what it is looking for, and how to prepare for it. Ask whether medicines, periods, sexual activity, or exercise could affect the sample, and when results will be available. If the result is abnormal, ask what other tests or follow-up may be needed.