Are white blood cells in urine?

Last Update: May 30, 2022

This is a question our experts keep getting from time to time. Now, we have got the complete detailed explanation and answer for everyone, who is interested!

Asked by: Bruce Rempel
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It is possible to have white blood cells in the urine without a bacterial infection. Sterile pyuria refers to the persistent presence of white blood cells in the urine when no bacteria are found to be present by laboratory examination.

What does it mean when you have white blood cells in your urine?

Increased white blood cells in urine may indicate:

A bacterial urinary tract infection. This is the most common cause of a high white blood cell count in urine. Inflammation of the urinary tract or kidneys.

Are white blood cells normally found in urine?

Leukocyte esterase is an enzyme present in most white blood cells (WBCs). A few white blood cells are normally present in urine and usually give a negative chemical test result.

Can white blood cells in urine mean nothing?

Your doctor will diagnose pyuria if you have at least 10 white blood cells in each cubic millimeter of urine. This often indicates infection. In sterile pyuria, however, persistent white cell counts appear during testing without bacterial infection. There are many causes and treatments associated with this condition.

Can white blood cells in urine mean cancer?

What to do: the presence of leukocytes in the urine is common in cancer that affects the urinary and genital systems. If this happens to you, your doctor will need to keep checking the amount of leukocytes in the urine in order to check the progression of the disease and your body's response to treatment.

white blood cells in urine (why & how to identify)

27 related questions found

What are the symptoms of stage 1 bladder cancer?

Bladder Cancer: Symptoms and Signs
  • Blood or blood clots in the urine.
  • Pain or burning sensation during urination.
  • Frequent urination.
  • Feeling the need to urinate many times throughout the night.
  • Feeling the need to urinate, but not being able to pass urine.
  • Lower back pain on 1 side of the body.

What happen if white blood cells are high?

A high white blood cell count may indicate that the immune system is working to destroy an infection. It may also be a sign of physical or emotional stress. People with particular blood cancers may also have high white blood cells counts.

Can stress cause leukocytes in urine?

The presence of large amount of leukocyte in the urine may be due to the kidney stones. Anxiety mystification occurs when various issues can effort together. Stress hormones are liberated from the body in case of high level of anxiety. The symptoms produced in this condition are headaches, sadness and dizziness.

What can show up in a urine test?

Urine tests are most commonly done to check:
  • for infections – such as a urinary tract infection (UTI) or some sexually transmitted infections (STIs) such as chlamydia in men.
  • if you are passing any protein in your urine as a result of kidney damage – this is known as an ACR test.

What infections can be found in urine?

Types of urinary tract infections (UTIs)
  • urethritis – infection of the urethra.
  • cystitis – infection of the bladder.
  • pyelonephritis – infection of the kidneys.
  • vaginitis – infection of the vagina.

How do I get rid of white blood cells in my urine?

Treatment for leukocytes in the urine depends on the cause and if there is an infection. For some conditions, such as a bacterial UTI, antibiotic therapy will clear up the infection relatively quickly. For more severe infections or those that will not resolve easily, more in-depth medical treatment may be needed.

What should not be found in urine?

Usually, glucose, ketones, protein, and bilirubin are not detectable in urine. The following are not normally found in urine: Hemoglobin. Nitrites.

What are the symptoms of bacteria in urine?

Urinary tract infections don't always cause signs and symptoms, but when they do they may include:
  • A strong, persistent urge to urinate.
  • A burning sensation when urinating.
  • Passing frequent, small amounts of urine.
  • Urine that appears cloudy.
  • Urine that appears red, bright pink or cola-colored — a sign of blood in the urine.

Why would blood show up in urine test?

In hematuria, your kidneys — or other parts of your urinary tract — allow blood cells to leak into urine. Various problems can cause this leakage, including: Urinary tract infections. These occur when bacteria enter your body through the urethra and multiply in your bladder.

Can a UTI cause high white blood cell count?

The WBC count may or may not be elevated in patients with uncomplicated UTI, but it is usually elevated in patients with complicated UTIs. Patients with complicated UTIs may have anemia; for example, anemia is observed in 40% of patients with perinephric abscesses.

What is normal WBC?

The normal number of WBCs in the blood is 4,500 to 11,000 WBCs per microliter (4.5 to 11.0 × 109/L). Normal value ranges may vary slightly among different labs.

Do leukocytes in urine always mean infection?

If your doctor tests your urine and finds too many leukocytes, it could be a sign of infection. Leukocytes are white blood cells that help your body fight germs. When you have more of these than usual in your urine, it's often a sign of a problem somewhere in your urinary tract.

Can a urine test detect STDS?

Sexually Transmitted Infections (STIs) A urinalysis can give clues to the presence of sexually transmitted infections. A positive dipstick for leukocyte esterase or increased numbers of white blood cells in the microscopic exam is suggestive of chlamydia or gonoccocal infection.

Does a urine test show everything?

Urine tests can help detect diseases of the urinary system as well as metabolic diseases like diabetes or liver disease. The color, odor and amount of urine can already indicate whether something is wrong.

What does it mean when you test positive for leukocytes and positive for nitrite?

If the test for leukocyte esterase is positive but finds no nitrite, an infection may still be present. The test is particular to certain bacterial enzymes, which means it can pick up specific bacterial infections with more certainty.

How many leukocytes in urine are normal?

Microscopic examination/urine sediment. WBCs, RBCs, epithelial cells, and, rarely, tumor cells are the cellular elements found in the urinary sediment. The number of WBCs considered normal is typically 2-5 WBCs/hpf or less. A high number of WBCs indicates infection, inflammation, or contamination.

Does Covid cause leukocytes in urine?

In our study, we have found increase white blood cells (WBC) in the urine of about half of the tested COVID-19 patients (Table 2). In most of the cases there was a negative bacterial urine culture.

Is high white blood count serious?

On its own, leukocytosis is usually not harmful. An abnormally raised white blood cell count is not a disease condition, but can point to another underlying cause such as infection, cancer or autoimmune disorders. An abnormally high white blood cell count should always be considered for its possible causes.

What is an alarming white blood cell count?

In general, for adults a count of more than 11,000 white blood cells (leukocytes) in a microliter of blood is considered a high white blood cell count.

What is the treatment for high white blood cell count?

Hydroxyurea (Hydrea®) is sometimes given to lower very high WBC counts rapidly until a CML diagnosis is confirmed through blood and bone marrow tests. Hydroxyurea is taken as a capsule by mouth. Lowering those very high WBC counts can help reduce the size of the spleen.