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Biopsy complications

Infection and Sepsis — After a Biopsy

Sepsis after a biopsy is rare, but it moves fast. Fever or shaking chills in the hours or days after any biopsy — especially a prostate biopsy through the rectum — is an emergency, not something to watch at home.

Medically reviewed by Dr. T. Raghavender Reddy, Medical Oncologist, MBBS · DM (Medical Oncology) · MD (Radiation Oncology) · Last reviewed September 2026

  • Rare but fast — Post-biopsy sepsis is uncommon, but when it develops it can become life-threatening within hours.
  • Prostate biopsy carries the highest-profile risk — A transrectal prostate biopsy passes through bowel tissue, giving bacteria a direct path to the bloodstream.
  • Fever with rigors is the key signal — Shaking chills you cannot control, combined with fever, after a biopsy need emergency assessment — not rest.
  • Tell the team at once — When you arrive at emergency, say you have had a recent biopsy. It changes the assessment immediately.
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Sepsis after a biopsy is rare but moves very fast. Fever, rigors, or confusion in the hours or days after any biopsy — especially a transrectal prostate biopsy — is an emergency. Do not wait for your next appointment. Go directly to the nearest emergency department and tell them you have had a recent biopsy.

If a symptom below applies to you, do not wait for a callback. Call 1800-202-8726 or go to your nearest emergency department.

What to tell the emergency team the moment you arrive

  • Say you have had a biopsy — the type and exact date.
  • Tell them where the biopsy was taken from (prostate, liver, kidney, lung, lymph node).
  • Tell them which antibiotics you were given before the procedure, if any.
  • Tell them any antibiotics you have taken recently or take regularly.
  • Tell them if you have diabetes, use steroids, or have a condition affecting your immune system.
  • Bring or photograph your biopsy discharge summary if you have one.

If you are worried right now, call

Our helpline is answered by clinical staff. If a symptom is on the list above, do not wait for a callback — call, or go to your nearest emergency department.

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How do you tell normal recovery from something dangerous?

SignNormal after biopsyNeeds emergency assessment
Typically startsIn the hours after the procedure; settles over a day or twoWithin the first few days, but can appear later
TemperatureMay feel slightly warm; no shakingClearly feverish with rigors — shaking you cannot stop
Pain at biopsy siteSoreness that improves day by dayWorsening pain, especially with swelling or redness
Urinary symptoms (prostate)Some burning or frequency for a few daysCannot pass urine at all, or blood in urine alongside fever
How you feel overallTired but improvingSuddenly much worse, or a strong sense that something is wrong

Why does a transrectal prostate biopsy carry a higher infection risk?

A transrectal prostate biopsy takes tissue through the wall of the rectum. Bacteria that normally live harmlessly in the bowel can enter the bloodstream during this process.

Increasing resistance to the antibiotics routinely given before the procedure has made post-biopsy sepsis more common in some settings worldwide. This is a recognised challenge in urology practice, not something unique to any one country or centre.

Other biopsies — liver, kidney, lung, lymph node — also carry a small infection risk, but the transrectal route is the most discussed because bowel bacteria have a direct path. A transperineal approach, which avoids passing through the bowel wall, carries a lower infection risk.

If you were given antibiotics before your biopsy, complete the full course as prescribed. Do not take additional antibiotics on your own if you develop fever — go to emergency instead, so blood cultures can be taken before any new antibiotic is given.

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Common questions

Frequently asked questions

How common is sepsis after a prostate biopsy?

Post-biopsy sepsis is uncommon but not rare enough to ignore, and rates vary significantly depending on which antibiotic protocol a centre uses and local resistance patterns. Published urology data, including guidance from ASCO and the European Association of Urology, note that septic complications after transrectal prostate biopsy have increased in settings where antibiotic resistance is higher. The population figure matters less than recognising the symptoms if they appear in you — which is why every patient should know what to watch for before they go home.

I have a mild fever — do I really need to go to emergency?

Not automatically. Mild warmth and some soreness are common in the first day after a biopsy. What changes the picture is rigors — uncontrollable shaking chills — a very rapid heartbeat, confusion, or a clear sense that you are getting worse rather than better. If you are not sure, call your oncology team or the hospital where the biopsy was done right now. Do not wait until morning to find out. If you cannot reach anyone within a few minutes, go to emergency.

Can I take leftover antibiotics from home to treat the infection?

No. Self-treating with antibiotics at home can partially suppress the infection while sepsis continues developing, and it destroys the blood cultures that emergency teams need to identify which bacteria are causing the problem. Those cultures have to be taken before any new antibiotic is given — if you take antibiotics first, the results may come back falsely negative, making the right treatment much harder to choose. Sepsis needs intravenous treatment in hospital, not antibiotics from a blister pack at home.

My biopsy was more than a week ago — can it still be infection?

Yes. Post-biopsy infections most often appear within the first few days, but they can present later, and a delay does not rule it out. If you develop fever, rigors, or sudden deterioration at any point after a biopsy and cannot clearly explain why, tell whoever assesses you about the procedure. A biopsy a week ago is still clinically relevant information, and omitting it can lead to the wrong diagnosis being considered first.

Full index

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