Key Takeaways
- 0–5 pus cells/HPF is generally considered within the normal range.
- More than 10 pus cells/HPF may indicate pyuria and should be discussed with a doctor.
- A raised pus cell count does not always mean a urinary infection.
- Fever, back or side pain, pregnancy or fever in a child needs prompt medical attention.
What Are Pus Cells In Urine?
Pus cells in urine are white blood cells that can appear when the urinary tract is responding to infection, irritation or inflammation. Most pus cells in urine are neutrophils, which are a type of white blood cell that stays persistently active in the body’s immune response. When these cells are present in increased numbers, the finding is called pyuria.
Pus Cells vs Visible Pus
Pus cells represent leukocytes in urine detected when a sample is examined under a microscope. They differ from visible pus, which may appear as a thick discharge from outside the tract.
Sterile vs Non-Sterile Pyuria
Pyuria can occur with or without bacteria that grow on a urine culture. When bacteria are detected, it may occur with a urinary infection. When white blood cells are present, but the routine culture shows no bacterial growth, it is called sterile pyuria.
Below is a quick glance at the difference between Sterile vs Non-Sterile Pyuria:
| Non-sterile pyuria | Sterile pyuria | |
| Meaning | Urine that contains white blood cells along with bacteria | White blood cells present without bacterial growth on culture |
| Common causes | UTI, kidney infection | Recent use of antibiotics, STI, stones, TB, bladder inflammation |
| Culture result | Bacteria may grow | No bacterial growth |
What Is the Normal Range of Pus Cells in Urine?
The pus cells in urine normal range under microscopy is usually 0–5 cells per high-power field. Counts of 6–10 cells per field are considered mildly elevated. Counts above 10 require evaluation alongside symptoms and clinical findings.
The following table helps interpret your urine R/M report values and determine your next steps:
| Pus cells per HPF | What it usually means | What to do next |
| 0–5 | Usually within the normal range | No action may be needed if you feel well |
| 6–10 | Finding 4-6 pus cells in urine is borderline or mildly increased. | Consider symptoms and a repeat clean-catch sample |
| 10–12 and above | Seeing 10-12 pus cells in urine may represent urinary tract inflammation. | Discuss the result with a doctor; a urine culture may be advised |
| 15–20 | A result of 15-20 pus cells in urine is more clearly raised. | Medical assessment and urine culture may be appropriate |
| “Plenty” or “TNTC” | Observing plenty of pus cells in urine reflects a very high cell count. | Seek medical advice promptly |
Why Can Normal Ranges of Pus Cells in Urine Differ Between Laboratories?
Laboratories interpret results like 0-5 or 12-15 pus cells in urine differently based on testing methods, equipment and sample techniques. For this reason, compare your result with the reference range printed on your report.
What Is the Normal Range of Pus Cells in Urine Among Men, Women and Children?
For urine microscopy, the usual reference range for pus cells is 0–5 per high-power field (HPF) for men, women and children.
How To Read Your Urine Report?
You can interpret a urine report by looking at the pus cell count together with protein or foamy urine indicators. The findings of the report may also indicate RBCs, epithelial cells, bacteria, nitrites and leukocyte esterase.
Here is what the common terms on a urine report mean and when they may need further attention:
| Term | Simple meaning | What it may indicate | When it needs further medical attention |
| Pus cells | White blood cells | Can be found due to infection/irritation | An elevated level with symptoms |
| RBCs | Red blood cells | May occur with infection, stones or other causes of blood in urine | Visible blood or blood that persists on repeat testing |
| Epithelial cells | Skin cells or cells from the lining of urinary tract | A small number may be normally found; an elevated number may indicate sample contamination | Many cells with raised pus cells |
| Bacteria | Microorganisms found in the sample | May indicate infection or contamination | Needs correlation with symptoms or culture |
| Nitrite | A chemical produced by some bacteria | A positive result supports the diagnosis of UTI | A positive result with symptoms |
| Leukocyte esterase | A substance associated with white blood cells | Indicates the presence of white blood cells | A positive test result requires urine microscopy for confirmation |
Pus Cells With RBCs
The presence of pus cells and RBCs together could occur in cases like a urinary tract infection or the formation of urine stones. Finding blood in urine can stem from several other benign reasons, like menstrual contamination.
Pus Cells With Many Epithelial Cells
A large number of epithelial cells can indicate that the urine sample was contaminated during collection. When many epithelial cells occur alongside increased pus cells, repeating the test with a properly collected clean-catch sample may give a more reliable result.
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What Causes Pus Cells In Urine?
Investigating pus cells in urine causes often points to urinary infections as the primary trigger. The following table explains common causes, distinguishing clinical clues and the tests used to investigate them:
| Cause | Clue | Test that confirms it |
| UTI (bladder infection) | Burning while urinating, frequent urination or cloudy urine | Urine culture |
| Kidney infection | Fever, chills or pain in the back or side | Urine culture, blood tests and, when needed, imaging |
| Kidney or bladder stones | Sharp pain in the back, side or abdomen, sometimes with blood in urine | Ultrasound or CT scan |
| STIs | Genital discharge or other symptoms suggesting an STI | STI testing, such as a swab or PCR test |
| Prostatitis in men | Pelvic discomfort, difficulty passing urine or fever | Doctor’s assessment and urine testing |
| Urinary TB | Persistent pus cells with a negative routine culture | Tests for TB, including appropriate urine testing |
| Interstitial cystitis | Long-term bladder pain without a clear infection | Doctor’s evaluation |
| Medicines | Pus cells appearing after starting certain medicines | Review of medicines with a doctor |
| Contamination | No urinary symptoms with many epithelial cells | Repeat clean-catch urine sample |
What Causes Pus Cells in Women?
Exceeding the pus cells in urine normal range in female patients usually indicates a genitourinary bacterial infection. Urinary Tract Infections (UTIs) have been identified as the most frequent cause. The bacterium Escherichia coli (E. coli) is responsible for approximately 75% of all uncomplicated urinary tract infections.
Hormonal changes during pregnancy, sexual intercourse and menopause also alter natural vaginal flora. These changes make it easier for bacteria to attach and trigger an inflammatory immune response.
What Causes Pus Cells in Men?
In men, kidney stones, urinary infections or prostate inflammation frequently elevate pus cell counts. Pelvic pain, difficulty passing urine or fever provide additional clues requiring medical assessment.
What Causes Pus Cells in Children?
Detecting pus cells in urine in children often occurs alongside an active urinary tract infection. They may also occur with unrelated symptoms that vary according to age. Pyuria can be interpreted alongside bacteriuria and the symptoms of the child.
What If There Are Pus Cells but the Culture Is Negative?
Finding pus cells in urine but culture negative results defines a condition called sterile pyuria. This condition may develop from recent antibiotics, stones, STIs, tuberculosis or other urinary conditions. Further clinical evaluation is required to identify and treat the root cause.
What Are the Symptoms of High Pus Cells in Urine?
High pus cell count in urine is associated with inflammation and infection of the urinary tract. Other pus cells in urine symptoms may include:
- Presence of cloudy urine or smelly urine
- Stinging, pain or a burning feeling while urinating
- Lower abdomen discomfort or pain
- Feeling the need to urinate often or suddenly
Red-flag box: See a Doctor Today If You Have:
- Fever or chills
- Pain in the back or side
- Vomiting and nausea
- Hematuria
- Symptoms of urinary problems during pregnancy
- Fever in infants and children
- Diabetes or immunosuppression
- Symptoms lasting for over two days
How Are Pus Cells in Urine Diagnosed?
A standard pus cells in urine test combines microscopy, routine urinalysis and culture sensitivity. Below is a brief look at tests performed to diagnose urinary conditions.
Urine Routine and Microscopy
A urine routine test checks the sample for cells, bacteria and other substances. Microscopy allows the laboratory to report the exact number of white cells present.
Urine Culture and Sensitivity
A urine culture test checks whether bacteria grow to identify the specific infecting organism. Sensitivity testing shows which antibiotics are most effective against that germ.
Other Tests
Your doctor may recommend an ultrasound as well. This test helps in identifying the root cause of the elevated levels of pus cells in the urine because it is useful for locating structural issues in vital organs.
Doctors may also recommend comprehensive STI testing based on symptoms and microscopy findings. In some cases, imaging checks for stones and specialised screening can be done to detect atypical organisms.
How to Give a Clean-Catch Urine Sample?
You can achieve a clean-catch urine sample by maintaining proper hygiene and taking certain measures. Certain measures that can help you get the sample are stated below:
- Wash your hands before collecting the sample.
- Clean the genital area as instructed.
- Start urinating into the toilet.
- Collect the middle part of the urine stream in the sterile container.
- Close the container securely without touching its inside.
- Hand the sample to the laboratory as soon as possible.
- Poor collection can contaminate the sample and may lead to misleadingly high pus cell counts.
How Are High Pus Cells in Urine Treated?
Standard pus cells in urine treatment approaches include antibiotics, pain relief medication and surgical procedures. Each of them is used depending on the type of medical condition and severity of the infection or disease.
Do All High Pus Cell Counts Need Antibiotics?
No. Antibiotics are generally used when a bacterial infection is suspected or confirmed, instead of simply because pus cells are present. Finding pus cells in urine without symptoms usually does not require antibiotic treatment. However, pregnant women require specialised medical assessment.
Treating the Underlying Cause
The usual approach depends on what is causing the raised pus cells. Below are common causes and their usual approach:
| Cause | Usual approach |
| UTI | Antibiotics selected according to the culture result |
| Kidney infection | Longer antibiotic treatment, with hospital care sometimes needed |
| Stones | Pain control and a surgical procedure when needed, depending on the stone |
| STI | Specific treatment, with sexual partners treated when advised |
| TB | Long-term anti-TB treatment under specialist care |
| Contamination | Repeat the urine test with a properly collected sample |
Why Should You Avoid Self-Medicating With Antibiotics?
Taking antibiotics without medical advice can expose bacteria to the medicine unnecessarily. Over time, some bacteria can become resistant, making infections harder to treat.
Home Care: Myth vs Fact
Here are 5 myths and facts regarding pus cells in urine home remedies:
| Belief | Reality |
| Drinking more water can cure the infection | Water supports hydration but cannot treat an infection. |
| Cranberry juice can treat a UTI | Cranberry may help prevent some repeat UTIs but does not treat active infection. |
| Vitamin C clears pus cells | Evidence is limited, so it should not be used as treatment. |
| Holding urine is harmless | Regularly delaying urination is not advisable and may increase the risk of urinary problems. |
| Unused antibiotics can be taken later | Do not take leftover antibiotics without medical advice. |
How Long Does It Take for Pus Cells to Return to Normal?
Knowing how long for pus cells in urine to go away depends on the underlying cause. Doctors recommend repeat testing when symptoms persist, results are uncertain or cell counts remain high.
Pus Cells in Urine During Pregnancy, Childhood and Other Special Situations
Pregnancy, childhood, advanced age and diabetes can significantly change how urinary problems present. Doctors carefully evaluate pus cells in urine during pregnancy, childhood, older age and diabetes.
During Pregnancy
A UTI in pregnancy is common because physical changes affect the urinary tract. A raised pus cell count requires prompt medical assessment and culture testing. Untreated infections can progress to the kidneys and cause complications during pregnancy.
In Children and Infants
Parents should pay close attention to changes in a child’s behaviour and general health. A UTI in children may not cause obvious burning or frequent urination.
In Older Adults and People With Diabetes
Instead of obvious discomfort, cloudy urine may be the primary warning sign in older adults. People with diabetes may have higher infection risks as well as they require careful medical assessment.
What Should You Do If Urinary Symptoms Return After Treatment?
If recurring UTI symptoms and treatment do not provide lasting relief, consult a doctor immediately. Watch out for burning during urination, lower abdominal pain, fever or flank pain. Repeat testing confirms whether elevated cells persist and helps your doctor to plan a suitable treatment approach.
What Can Happen If High Pus Cells Are Ignored?
Ignoring high pus cells in urine can allow untreated urinary problems to worsen. Possible complications include:
- Kidney infection
- Blood infection
- Kidney scarring in children
- Pregnancy complications
How Can You Help Prevent Urinary Problems?
You can prevent urinary problems by staying hydrated and not holding urine for a long period. Along with that, the following are some more ways to prevent urinary conditions:
- Clean your feet, hands and genital area properly after each interval of urination.
- Avoid having caffeinated and alcoholic drinks because they can irritate the bladder.
- Eat fibre-rich foods as they help to reduce the risk of constipation and promote optimal digestive muscle control.
- Urinate as soon as possible after sexual activity and wash the intimate area to wash away any bacteria that may have moved during intercourse.
- Wear loose cotton fabric clothes to keep the genital area dry and stop bacteria from growing.
When Should You See a Doctor?
You should consult a urologist to discuss symptoms if you experience burning or frequent urination. Here are some more situations when you should consult a urologist:
- Urine that is cloudy or smells bad, together with other urinary symptoms.
- Fever, chills, nausea or pain in the back or side of the body.
- Blood in urine.
- Urinary symptoms in case of pregnancy or fever in infants and children.
- Urinary symptoms together with diabetes or lowered immunity.
Medical Disclaimer: The information in this article is for educational purposes only and should not be considered medical advice. Pus cells in urine can have different causes, and the right diagnosis and treatment depend on individual symptoms and test results. Consult a qualified healthcare professional for proper evaluation and treatment.
FAQs
1. Are Pus Cells in Urine Always an Infection?
No. UTIs are the usual cause, but stones, STIs, inflammation, some medicines or a contaminated sample can also push the count up.
2. Is 10-12 Pus Cells in Urine Serious?
Yes, 10-12 pus cells per HPF can indicate some inflammation or infection.
3. Can the Pus Cells in Urine be Normal?
A lower volume of pus cells in Urine is normal. Any volume above 5 pus cells per HPF may require medical attention.
4. Can Dehydration Cause Increased Pus Cells in Urine?
No, because dehydration can make your urine more concentrated, but it may not cause pyuria.
5. Are Pus Cells in Urine an STD?
Solely pus cells in urine are not a symptom of an STD. However, Chlamydia and Gonorrhoea infections can cause them even if your routine culture is negative.
6. Why do I have Pus Cells in Urine but no Symptoms?
You most likely have a mild infection, an early infection, a contaminated sample or you took antibiotics recently.
7. Can Pus Cells in Urine Affect Pregnancy?
Yes, if there’s an underlying infection that’s untreated.
8. How can I reduce Pus Cells in Urine Naturally?
You can reduce the pus cell levels naturally by drinking more water and maintaining proper hygiene.
9. How long will it take for Pus Cells to get back to normal?
Usually a few days to a week once treatment works. Harder cases can take longer.
10. Which Test Finds the Cause?
Urine culture and sensitivity. It shows which bacteria are there and which antibiotics work. Other tests depend on what the doctor suspects.
11. Can Children Have Pus Cells in Urine?
Yes. In young kids, a UTI can look like fever, vomiting, poor feeding, or just being irritable.
12. What If I Have Pus Cells but the Culture Is Negative?
That’s called sterile pyuria. Common causes are recent antibiotics, STIs, stones, TB, bladder inflammation and some medicines.
