What is the cause of positive white blood cells in urine?

Many people find that their urine is positive for white blood cells when they go to the hospital for examination. Many people are puzzled by this and even think that they have some serious disease. In fact, there is a reason for this result which is different from that of normal people. Here are some relevant knowledge points to help you understand why this result is the case.

White blood cells, occult blood, red blood cells, etc. are all indicators of urinary tract infection.

The indicators to look at for urinary tract infections include: white blood cells (WBC), occult blood or red blood cells, nitrite (NIT), color and turbidity (TUR). When the urinary system is infected with bacteria, white blood cells and red blood cells often appear in the urine, the color or turbidity of the urine also changes, and nitrite is sometimes positive. Chemical testing of urine white blood cells and occult blood or red blood cells only serves as a screening method, and the clinical diagnosis is based on the results of microscopic examination.

There are a small number of white blood cells in normal human urine, with no more than 5 per high-power field of view in centrifuged urine. When abnormal, the urine contains a large number of white blood cells, indicating that there are suppurative lesions in the urinary tract, such as pyelonephritis, cystitis and urethritis.

Normal reference value: <5/HP.

Occult blood (U-BLO)

Red blood cells may occasionally be seen in normal human urine, with no more than 3 per high-power field of view after centrifugation.

Normal reference value: negative (-)

Some items on the routine urine analysis test report are followed by "1+" or "3+"... or +, +++, which means that the test result is positive; on the contrary, if it is "-", it means that the test result is negative. When reading the report, you should analyze it objectively, because there are many interfering factors that affect the accuracy of the test results, such as dietary factors, some interfering substances in urine, etc. When abnormalities are found in routine urine tests, please do not be too nervous or worried; similarly, when test results are inconsistent with clinical manifestations, do not be blindly optimistic. Be sure to cooperate with the clinician for further examination and analysis to avoid delaying the diagnosis of the disease.

Sometimes urinary tract infection may occur if you do not pay attention to hygiene. Itching, and in severe cases, pain during urination. If you have a urinary tract infection, you should pay attention to changing your underwear in time, and the underwear should not be too tight. It is best to wear pure cotton underwear. When washing, the underwear should be washed separately from other clothes to avoid cross infection.

You can take penicillin antibiotics orally or use antibiotics against anaerobic bacteria, drink plenty of water, get enough rest, and avoid spicy and hard foods. Be sure to check whether you are allergic to penicillin before taking the medicine. If oral penicillin is ineffective, it may be a mycoplasma infection. Then you need to use anti-mycoplasma drugs such as erythromycin. It is best to confirm what kind of urethritis infection you have before taking the medicine.

In fact, if the results of examination in the hospital are different from those of normal people, then there must be some problems. If you encounter anything abnormal, you must cooperate with the doctor's treatment in time, so as not to miss the best treatment opportunity and not to delay it and cause greater harm. The human body can be strengthened through exercise. With better physical fitness, there will naturally be fewer diseases.