Your Urine Routine Report, Line by Line: Pus Cells, Albumin, Epithelial Cells

01

My report says pus cells 8–10/HPF — how serious is that?

Most laboratories treat 0 to 5 white cells per high-power field as the normal range, and family medicine reference guidance says more than five white cells per high-power field is consistent with a urinary tract infection in someone who has symptoms. So 8 to 10 is mildly raised. It is not a severity score. The same count means something very different in a woman with burning and frequency for two days than it does in a person with no urinary symptoms at all who had the test done for a job medical or a pre-surgery panel.

White cells in urine, called pyuria, simply say that something is irritating the urinary tract lining. Infection is the commonest reason, but a stone moving down the ureter, a catheter, recent sex, vaginal discharge that entered the sample, inflammation of the kidney tissue from a medicine, and older healed injury can all raise the count. This is why a good doctor reads the number next to your symptoms and your examination, and not as a stand-alone verdict.

02

What is the normal range, and what does HPF mean?

HPF stands for high-power field — literally, one circular view down the microscope at high magnification, usually around 400 times. The technician spins a measured volume of urine, discards most of the liquid, resuspends the sediment, and counts what is visible in several such fields, then reports an average or a range. That is why results are written as ranges like 4 to 6 or 8 to 10 rather than a single exact figure.

Because the method is semi-quantitative, the number moves with how concentrated your urine was, how long the sample sat before it reached the laboratory, and how each laboratory prepares the slide. A report of 4 to 6 at one centre and 8 to 10 at another a day later does not reliably mean your infection is worsening. Trends matter only when the same laboratory, the same collection method and the same clinical question are being compared.

03

Albumin 'trace' or '+1' — what does it mean?

The dipstick protein pad is a rough scale, not a measurement. Published thresholds put a trace reading at roughly 5 to 10 mg per decilitre and a 1+ reading at about 30 mg per decilitre. A single trace or 1+ on its own is common and frequently harmless. Fever, vigorous exercise, standing upright for long hours, very concentrated or alkaline urine, and the urinary analgesic phenazopyridine can all push the pad up without any kidney disease being present.

The sensible next step is not worry but a repeat. Benign transient proteinuria from standing or exercise often disappears when the test is repeated on a first-morning sample, taken before you have been on your feet. If protein is still there on repeat, the question changes from whether it is real to how much and why, and that is answered by a urine albumin-to-creatinine ratio together with serum creatinine and an estimated filtration rate — not by another dipstick.

Pregnancy is the one setting where protein on a dipstick is not something to repeat at leisure. New protein in the urine after about the twentieth week, particularly alongside a raised blood pressure, headache, visual disturbance, pain below the ribs on the right, or sudden swelling of the face and hands, can be preeclampsia. That combination needs a blood pressure reading and assessment the same day rather than a first-morning repeat next week, so tell whoever ordered the test that you are pregnant.

04

Why are epithelial cells high — was the sample contaminated?

Squamous epithelial cells are the flat surface cells that line the outer genital skin and lower urethra. Reference guidance is direct about them: more than five large squamous cells per high-power field suggests contamination with flora from outside the bladder. In practice a high squamous count usually means the sample picked up cells and bacteria from the skin on the way into the container, not that anything is wrong inside the urinary tract.

This matters because a contaminated sample can produce misleading bacteria and mixed growth on culture, and can trigger an antibiotic nobody needed. The same guidance adds an important caution though: even in a contaminated specimen, clear pyuria or blood still points towards a urinary tract infection. So a high epithelial count is a reason to repeat the sample properly, not a reason to dismiss real symptoms.

05

What can RBCs in urine mean?

Red cells are reported the same way, and laboratory reference ranges commonly print 0 to 4 per high-power field as normal. Reference guidance sets the diagnostic bar lower than that: microscopic haematuria in adults is defined as three or more red cells per high-power field on a properly collected, spun specimen, and in children as more than five. That gap is worth knowing, because a count of three or four that your report labels normal already meets the adult definition and is worth confirming rather than ignoring. Short-lived causes are common and reassuring: menstruation, hard exercise, a recent catheter or instrumentation, and infection itself. A stone passing down the ureter classically gives pain plus red cells.

Two situations deserve a proper look rather than a repeat prescription. Red cells that persist after infection has been treated need evaluation, because in adults, and particularly older adults or people who have smoked, bladder and kidney tumours can present with painless blood in urine and nothing else. Red cells together with protein and casts point instead towards the kidney filters themselves. Also note that a dipstick positive for blood with no red cells on microscopy usually reflects free haemoglobin or muscle pigment, not bleeding.

06

Does every pus-cell report need an antibiotic?

Usually not. Bacteria growing in the urine of a person with no urinary symptoms is a recognised, named state — asymptomatic bacteriuria — and treating it does not help most people. Reference summaries of the infectious diseases guidance are explicit that healthy non-pregnant women, children, people with diabetes, older adults, people with spinal cord injury and people with indwelling catheters do not benefit from treatment, and that antibiotics do not reduce their rate of later symptomatic infections.

There are two exceptions where treatment clearly helps: pregnancy, where treating asymptomatic bacteriuria reduces pyelonephritis, low birthweight and preterm delivery; and before a urological procedure in which mucosal bleeding is expected, such as prostate resection. Kidney transplant is often quoted as a third, but the 2019 infectious diseases guideline recommends against screening or treating beyond the first month after the operation, and judged the evidence too thin to advise either way within that first month — so it is a decision for the transplant team, not a general rule. Outside those, a raised pus-cell count in someone who feels well is a finding to explain, not an automatic prescription. Unnecessary courses drive resistance and side effects without making anyone better.

07

When is a culture needed, and when is it urgent?

A culture earns its place when you have symptoms and the answer will change what is prescribed: burning, urgency, frequency or lower abdominal pain, especially if this is a repeat episode, if a recent antibiotic did not work, if you are pregnant, if you have diabetes or a catheter, or if you are a man, in whom urinary infection is less common and more likely to need a longer look. Screening cultures in people with no symptoms are recommended only in pregnancy and before certain urological procedures.

Some presentations should not wait for a culture result before being seen. Fever with shaking chills, pain in the flank or back, vomiting, or feeling systemically unwell suggests the infection has reached the kidney. In older adults, new confusion or drowsiness with urinary symptoms is a reason to be assessed urgently — the same day at the very least, and straight away if there is also fever, shivering or unsteadiness — rather than to start a tablet at home and hope.

08

How to give a proper midstream first-morning sample

Use the sterile container the laboratory gives you, not a household jar. Wash your hands, clean the genital area with plain water and dry it, then begin passing urine into the toilet. Only after the stream is established do you move the container in, collect roughly the middle third, and finish into the toilet. Reference guidance recommends this midstream approach with genital cleansing where possible, regardless of age or sex, while being candid that cleansing on its own has not been shown to reduce contamination. Close the lid without touching the inside rim.

Timing matters twice over. A first-morning sample is the most concentrated and the best one for confirming protein, and for a culture the specimen should reach the laboratory quickly — standard practice is plating within about two hours of collection unless it is refrigerated or collected into a preservative tube, because bacteria multiply in a warm container and inflate the count. If you are menstruating, say so on the form or reschedule, since blood and cells from the vagina will change the reading.