Here is the straight answer on the normal range of pus cells in semen: a normal semen report shows up to 1 million peroxidase-positive white cells per millilitre — the WHO 6th-edition cut-off — which usually reads as roughly 1–4 round cells per high-power field (HPF). Most “pus cells” your lab reports are actually harmless round cells, not true infection.
As a practising andrologist in Chennai, I get a message like this almost every day: a man photographs the line on his semen report that says “pus cells: 8–10/HPF,” and is convinced his fertility is finished and an infection is eating away inside him. Let me settle your nerves first, then give you the facts. In the large majority of these reports there is no infection and nothing to treat — the lab has simply counted round cells and called them pus. For the smaller number who do have a real problem, the fix is a targeted antibiotic course after a culture, not panic.
Quick Facts
- Normal is up to 1×10⁶ peroxidase-positive white cells/mL — the WHO 6th-edition threshold for true leukocytospermia (Dutta & Agarwal, 2025); on most Indian reports that corresponds to about 1–4 round cells per HPF.
- Not every “pus cell” is a white blood cell. Round cells in semen include both inflammatory cells (true pus) and immature sperm-making cells; you cannot tell them apart by eye, only with a peroxidase stain (Johanisson, 2000).
- Leukocytes in semen are common, not automatically a disease — found in about 30% of infertile men and up to 20% of fertile men (Henkel, 2024).
- White cells turn up even in proven-fertile sperm donors and these are linked to normal or improved fertilisation outcomes (Barraud-Lange, 2011).
- A genuine bacterial infection is the version that bites — it lowers sperm quality and raises sperm DNA fragmentation (Eini, 2021), which is exactly why a semen culture matters before antibiotics.
What is the normal range of pus cells in semen?
For most men I see, the honest answer is: lower than you fear. The internationally accepted reference is the World Health Organization’s: true leukocytospermia means more than 1 million peroxidase-positive leukocytes per millilitre of semen (Dutta & Agarwal, 2025). On the per-HPF count your Indian lab actually prints, that threshold usually works out to about 1–4 round cells per high-power field being well within normal. So a report of 2–4, or even an isolated 4–6, is rarely the catastrophe it feels like at 6 a.m.
The trouble is that the two scales do not line up neatly. The WHO number is a concentration per millilitre measured with a stain; your lab’s number is a rough visual count per microscope field. That mismatch is why I always interpret the count alongside the rest of the full semen analysis report — the sperm count, the motility, and whether there is any clinical symptom — rather than reacting to one line in isolation.
What “normal” actually means on your report
Normal does not mean zero. A few white cells are part of a healthy ejaculate — they are housekeeping cells. What we are screening for is a count high enough, and a clinical picture suspicious enough, to suggest real inflammation or infection. A single number, divorced from your symptoms and the rest of the report, tells me very little.
Why the lab reports a count per HPF
Most Indian semen reports do a manual microscope count and express it as cells “per high-power field.” It is quick and cheap, but it cannot distinguish a neutrophil (a true pus cell) from an immature germ cell — both look like “round cells” down the eyepiece. That single limitation is behind most of the over-diagnosis I unwind in clinic.
Pus cells vs round cells: the mix-up most reports make
Here is the most important thing on this page. The cells your lab labels “pus cells” are more correctly called round cells, and round cells are a mixed bag. Some are genuine inflammatory white blood cells — neutrophils, lymphocytes, macrophages — and those are the true pus cells. But a large share are immature germ cells: young sperm-making cells shed normally from the testis. Under an ordinary microscope, the two look almost identical, and morphology alone cannot reliably tell them apart (Johanisson, 2000).
So when a report says “8–10 pus cells/HPF,” what it very often means is “8–10 round cells/HPF” — and a good chunk of those may be harmless immature germ cells, not infection at all.
Why not every “pus cell” is a true white blood cell
To know whether those round cells are really leukocytes, the lab has to do a peroxidase test (also sold as a leuco-screen). Peroxidase-positive cells are true white cells; the rest are germ cells. Without that stain, a high “pus cell” count is an unconfirmed suspicion, not a diagnosis. This is precisely why I rarely treat a number alone — I treat a confirmed, symptomatic infection.
What your exact pus-cell count means (2–4 to 20–25 per HPF)
Searchers land here having typed their exact count, so let me give you the interpretation I use in clinic. Read this as a guide, not a verdict — the count is always weighed against your symptoms and the rest of the report.
| Count per HPF | What it most likely means | What I do |
|---|---|---|
| 0–1 | Completely normal | Nothing — reassurance |
| 2–4 | Normal; well within WHO range | Nothing — reassurance |
| 4–6 | Upper-normal; usually round cells, not infection | Repeat sample after 3–4 days’ abstinence if symptomatic |
| 8–10 | Mildly raised; could be round cells or early leukocytospermia | Peroxidase test ± semen culture only if symptoms |
| 10–12 | Raised; confirm whether truly leukocytes | Peroxidase test + semen culture |
| 20–25 | Clearly high; true leukocytospermia likely | Semen culture + targeted treatment if positive |
2–4 pus cells in sperm — is it normal?
Yes. A count of 2–4 per HPF sits comfortably in the normal range. If your sperm count and motility are fine and you have no burning, discharge or pain, this needs no treatment and no antibiotics. I see this number daily and reassure the man and move on.
4–6 pus cells (4–6 HPF)
Still upper-normal in my reading. Most of these are round cells. If you have symptoms, I repeat the sample after 3–4 days of abstinence and add a peroxidase test; if you have none, I leave it alone.
8–10 pus cells in semen
This is the count men message me about most. For both lower counts and an 8–10 result, if there are no clinical symptoms, no active treatment is required — the one exception being clinical features of infection (burning on passing urine, discharge, pelvic or perineal pain, fever). In that case I confirm with a peroxidase test and a semen culture before any antibiotic. An 8–10 with a perfectly normal sperm count, good motility and no symptoms is, in my clinic, far more often round cells than disease.
10–12 pus cells in semen
Now I want confirmation. A peroxidase test tells me whether these are genuinely leukocytes, and a semen culture tells me whether anything is growing. If the culture is positive or symptoms are clear, I treat; if it is amicrobial and you are well, over-treating does more harm than good.
20–25 pus cells in semen
This is clearly high and true leukocytospermia is likely. I will order a semen culture and sensitivity, screen for genital tract infection, and if something grows, treat it with a targeted antibiotic — then re-check the semen. Even here, I am treating a confirmed infection, not a number.
True leukocytospermia: the WHO definition that actually counts
Strip away the lab shorthand and there is one definition that matters clinically. Leukocytospermia (also called pyospermia) is a leukocyte concentration above 1×10⁶ peroxidase-positive white cells per millilitre of semen — the WHO threshold (Dutta & Agarwal, 2025). Above this, the white cells can affect sperm function through oxidative stress; below it, you are within normal limits whatever the per-HPF wording suggests.
It is worth keeping perspective on how common this is. Leukocytospermia is found in roughly 30% of infertile men and up to 20% of fertile men, while male genital tract infection prevalence ranges between 10% and 35% (Henkel, 2024). In other words, white cells in semen are a frequent finding across the population — not a rare red flag.
The peroxidase test and the leuco-screen
The peroxidase (leuco-screen) test is the step that converts a vague “pus cell” count into a real number. It stains true leukocytes brown so they can be counted separately from immature germ cells. Until that is done, a high count is a question, not an answer. If your lab only gave you a per-HPF figure and you are worried, asking for a peroxidase-based leukocyte count is the single most useful next test.
Do pus cells in semen cause infertility?
This is the fear underneath every message. Here is the balanced truth. A systematic review and meta-analysis using the WHO ≥1×10⁶ WBC/mL threshold found that leukocytospermia has only a modest association with sperm parameters and does not clearly reduce fertilisation outcomes after assisted reproduction (Castellini, 2020). White cells even turn up in proven-fertile sperm donors, where they are linked to normal or improved outcomes (Barraud-Lange, 2011). So raised pus cells, by themselves, are not a sentence of infertility.
The picture changes when the leukocytospermia is driven by a genuine bacterial infection. There, it is associated with poorer sperm quality and higher sperm DNA fragmentation (Eini, 2021) — and that is the situation where finding and treating the infection genuinely helps. This is also why, if your report shows raised pus cells alongside low sperm motility, I treat the two together rather than chasing the white-cell line alone.
So my answer to “can pus cells cause infertility” is precise: incidental round cells, no. A confirmed, cultured infection, yes — and that is the version we can fix.
In my clinic, the great majority of men who arrive panicking about “8–10 pus cells” turn out to have nothing more than round cells and a perfectly fertile report. I have lost count of the courses of antibiotics taken before they reached me — for a number, not a disease. My rule is simple: I do not treat a pus-cell count. I treat a man with symptoms, or a positive culture, or a confirmed peroxidase-positive leukocytospermia that is hurting his sperm. Everyone else gets reassurance, and it is almost always the right medicine.
Infection vs incidental: when pus cells need treatment
The whole subject becomes clear once you split it three ways. This is the spine of how I manage every report.
1. Incidental round cells — no treatment. Normal-to-upper-normal count, no symptoms, normal sperm parameters. These are usually immature germ cells. I reassure and stop. No antibiotic.
2. Symptomatic or culture-positive infection — investigate and treat. Male genital tract infection underlies roughly 15% of male infertility, and when it is suspected the recommended work-up goes beyond semen analysis to semen culture and PCR before committing to antibiotics (Rivero, 2023). If you have burning, discharge, pain or fever — or a culture grows an organism — I treat with a targeted antibiotic, then re-check. The same infection picture, by the way, is what I look for behind green or infected-looking semen and behind blood in the semen (hematospermia).
3. Asymptomatic leukocytospermia — do not over-treat. This is the trap. The clinical significance of asymptomatic leukocytospermia (≥1×10⁶ WBC/mL with no symptoms) remains uncertain, and routine antibiotics for asymptomatic men are not clearly justified (Reich, 2025). Amicrobial leukocytospermia — leukocytes with no detectable infection — is a real, recognised entity (La Vignera, 2021). And male accessory gland infection (MAGI) is frequently asymptomatic and easily over-diagnosed, so it needs a careful work-up rather than reflex antibiotics (Dutta & Calogero, 2025).
When I order a semen culture
I order a semen culture and sensitivity when there are clinical symptoms of infection, when the count is genuinely high and peroxidase-confirmed, or when raised white cells sit alongside abnormal sperm parameters in a couple trying to conceive. The culture tells me whether anything is actually growing — and what it is sensitive to — so the antibiotic is targeted, not a guess.
When no treatment is needed (asymptomatic)
If you feel completely well, your sperm count and motility are normal, and the only abnormal line is a modest pus-cell count, my honest advice is usually to do nothing beyond a sensible recheck. Treating an asymptomatic number with repeated antibiotics risks side effects and resistance for no proven gain.
How to reduce pus cells in semen — what actually works
If a culture confirms a genuine infection, a targeted antibiotic guided by sensitivity is the mainstay, followed by a repeat semen analysis to confirm the white cells have cleared. Where there is no infection, antibiotics are not the answer — and chasing the count with drug after drug only causes harm.
What genuinely helps across the board are the lifestyle and general measures that lower oxidative stress and support sperm health: stopping smoking, moderating alcohol, treating obesity, regular ejaculation to flush the tract, and a diet rich in antioxidants. These are the same steps I use to improve your sperm quality and quantity, and they matter far more than a bottle of antibiotics for the man whose “pus cells” are really round cells. If you also notice semen escaping at other times — for instance sperm leaking out with urine — that is a separate plumbing issue, not infection, and I assess it on its own.
When to see an andrologist
Most raised pus-cell counts are harmless. I want to see you, though, if any of these fit — because this is where treatment genuinely changes things:
- Symptoms of infection — burning on passing urine, discharge, pelvic or testicular pain, fever, or foul-smelling semen.
- A high count (10–12 and above) that has not been confirmed with a peroxidase test or a semen culture.
- Raised pus cells alongside an abnormal semen analysis or difficulty conceiving — sometimes the first clue to wider male infertility.
- A count that stays high on repeat testing despite feeling well.
If any apply, the work-up is quick — a peroxidase test and a semen culture usually settle it — and the treatment, when needed, is targeted and short.
Frequently Asked Questions
What is the normal range of pus cells in semen?
Normal is up to 1×10⁶ peroxidase-positive white cells per millilitre of semen — the WHO 6th-edition threshold (Dutta & Agarwal, 2025) — which on most per-HPF reports reads as about 1–4 round cells per high-power field. Remember that many cells counted as “pus” are actually harmless round cells, not true leukocytes (Johanisson, 2000).
What does it mean if pus cells are 8–10 in semen?
An 8–10/HPF count is mildly raised but, on its own, usually not a problem. If you have no symptoms and your sperm count and motility are normal, no treatment is needed — these are very often round cells, not infection. I only act if there are clinical symptoms or a peroxidase test and semen culture confirm a true infection.
Can pus cells in semen cause infertility?
By themselves, rarely — leukocytospermia has only a modest association with sperm parameters and does not clearly reduce assisted-reproduction outcomes (Castellini, 2020), and white cells appear even in fertile men (Barraud-Lange, 2011). The exception is when a genuine bacterial infection is driving them, which lowers sperm quality and raises DNA fragmentation (Eini, 2021).
How do I reduce or remove pus cells (infection) in semen?
If a semen culture confirms infection, a targeted antibiotic guided by sensitivity, followed by a repeat semen analysis, is the proven route (Rivero, 2023). If there is no infection, antibiotics are not the answer — stopping smoking, regular ejaculation, weight control and an antioxidant-rich diet do far more.
What antibiotics are used for leukocytospermia?
Only when a semen culture confirms a true infection — and then the choice should follow the culture sensitivity, not a blind guess. In practice the workhorses are a tetracycline such as doxycycline or a fluoroquinolone such as ciprofloxacin or levofloxacin. A doxycycline course improved semen parameters in men with low-level leukocytospermia (Hamada, 2011), and a systematic review found antibiotics can improve sperm parameters and clear the leukocytes in many men (Jung, 2016). But for an asymptomatic man with no growth on culture, antibiotics are not justified and risk more harm than good (Reich, 2025).
Are 2–4 or 4–6 pus cells per HPF normal?
Yes. Both 2–4 and 4–6 per HPF sit within or at the upper edge of normal, and in the absence of symptoms or abnormal sperm parameters they need no treatment. Most are round cells rather than true white blood cells.
Is leukocytospermia serious?
It can be, but usually it is not. Asymptomatic leukocytospermia is of uncertain significance and should not be reflexively treated (Reich, 2025); amicrobial leukocytospermia with no infection is a recognised, benign entity (La Vignera, 2021). It becomes serious mainly when a confirmed infection is harming sperm — which is why confirmation comes before treatment.
Sperm me pus cells kitna hona chahiye?
Normal range up to 1–4 round cells per high-power field hona chahiye, jo WHO ke 1×10⁶ peroxidase-positive white cells/mL threshold ke andar aata hai (Dutta & Agarwal, 2025). Zyada count ka matlab hamesha infection nahi hota — woh aksar round cells hote hain, isliye treatment se pehle peroxidase test aur semen culture zaroori hai.
You do not have to guess about this
If a semen report has frightened you, take a breath: in most men a raised pus-cell count is round cells, not infection, and needs nothing at all. The few who do have a true, confirmed infection get a short, targeted course of treatment — and you never have to play guessing games with a single line on a lab printout.
References
- Johanisson E, Campana A, Luthi R (2000). Evaluation of ’round cells’ in semen analysis: a comparative study. Human Reproduction Update. PMID 10972527
- Dutta S, Bocu K, Agarwal A (2025) [cited in-text as Dutta & Agarwal, 2025]. Role of Leukocytospermia in the Management of Male Infertility: Decoding a Mystery for the Busy Clinicians. The World Journal of Men’s Health. PMID 39434388
- Henkel R (2024). Leukocytospermia and/or Bacteriospermia: Impact on Male Infertility. Journal of Clinical Medicine. PMID 38792382
- Castellini C, D’Andrea S, Martorella A (2020). Relationship between leukocytospermia, reproductive potential after assisted reproductive technology, and sperm parameters: a systematic review and meta-analysis. Andrology. PMID 31250986
- Barraud-Lange V, Pont JC, Pocate K (2011). Seminal leukocytes and clinical outcomes with donor sperm insemination. Fertility and Sterility. PMID 21982729
- Reich MC, Heide N, Humaidan PC (2025). Asymptomatic Leukocytospermia and Assisted Reproductive Technology Outcomes: Reason for concern? International Brazilian Journal of Urology. PMID 40209117
References on infection and treatment
- La Vignera S, Cannarella R, Aversa A (2021). Leukocytospermia in late adolescents: possible clinical interpretations. Journal of Endocrinological Investigation. PMID 33226627
- Eini F, Kutenaei MA, Zareei F (2021). Effect of bacterial infection on sperm quality and DNA fragmentation in subfertile men with Leukocytospermia. BMC Molecular and Cell Biology. PMID 34388964
- Rivero MJ, Kulkarni N, Thirumavalavan N (2023). Evaluation and management of male genital tract infections in the setting of male infertility: an updated review. Current Opinion in Urology. PMID 36861760
- Dutta S, Bahar F, Calogero AE (2025) [cited in-text as Dutta & Calogero, 2025]. Male accessory gland infection (MAGI): Over-diagnosed or under treated in infertile men? Arab Journal of Urology. PMID 40747479
- Hamada A, Agarwal A, Sharma R (2011). Empirical treatment of low-level leukocytospermia with doxycycline in male infertility patients. Urology. PMID 22137697
- Jung JH, Kim MH, Kim J (2016). Treatment of Leukocytospermia in Male Infertility: A Systematic Review. The World Journal of Men’s Health. PMID 28053945
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Continue teaching me on this because I have puscell in my sperms but I want to do a second test results because I doubted the first one
Done!
This is much educative Dr shassh clinic
Thank you!
Hi Dr. Shah,
Good post indeed. My semen report shows 35 – 40 pus cells!
I have done semen test 10 days before, the pus cells were 20 -25, a Dr prescribed me a course of 10 days of antibiotic. when I completed the course I did the semen test again. I was shocked with the pus cells increasing to be 35 – 40!!
What should I do next?
Thank you in advance.
Please do call me on 9790783856
Hello sir my semen analysis shows 8-10 hpf pus cells present in semen and liquification time is >90 min and viscosity has increased. Overall results says NORMOZOOSPERMIA
WITH GENITAL TRACT
INFECTION WITH
INCREASED VISCOSITY. Do i require treatment?
Please call me on 9790783856