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After your biopsy

Haematoma After a Biopsy — What It Is and When to Call

A haematoma is a collection of blood that pools under the skin where the biopsy needle went in. It can look alarming. Most resolve on their own. A few need same-day review — here is how to tell the difference.

Medically reviewed by Dr. Mohammed Imaduddin, Surgical Oncologist, MBBS · MS (General Surgery) · M.Ch (Surgical Oncology) · Last reviewed September 2026

  • Blood pooling, not infection — A haematoma is blood collecting under the skin. It is not the same as an infection.
  • Most resolve without draining — Your body absorbs the blood over days to weeks. Most haematomas do not need any procedure.
  • Bruising often spreads first — Discolouration moving down from the site is normal — blood tracks along tissue planes under gravity.
  • Growing or hot means call today — An expanding or warm lump needs same-day assessment, not a wait-and-see approach.
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A haematoma after biopsy is a collection of blood that pools in the tissue where the needle went in. Most are small, look alarming as bruising spreads, and resolve on their own over days to weeks without draining. Call your team the same day if the lump is growing, very painful, or feels warm.

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 should you watch for at home?

  • Note whether the lump feels bigger, smaller or the same as the day before — a photograph taken at the same time each day helps you compare.
  • Check whether the skin directly over the lump feels warmer than the surrounding skin.
  • Take your temperature if you have a thermometer and note any reading that worries you.
  • Check the biopsy site for any new fluid, discharge or change in the wound.
  • Note whether your pain is easing, staying the same or getting worse day on day.
  • Tell your team all medicines, supplements and blood thinners you are taking — these affect how the haematoma behaves.

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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Dr. Raghavendra Naik
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Dr. Raghavendra Naik

MBBS, MS (General Surgery), M.Ch (Surgical Oncology)

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Dr. Mohammed  Imaduddin
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Dr. Mohammed Imaduddin

M.B.B.S, MS (General Surgery), M.Ch (Surgical Oncology)

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Dr. Vinay Mamidala
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MBBS, MS(General Surgery), M.Ch(Surgical Oncology), FMAS, FARIS(Ongoing)

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Dr. Paila Gowri Naidu
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Dr. Basudev Pokhrel
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MBBS, M.D (Immunohematology & Blood Transfusion)

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Not sure whether this counts as an emergency?

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How do you tell normal healing from a haematoma that needs review?

FeatureNormal haematoma healingCall your team today
Lump sizeStable or gradually softeningGrowing, or feels tenser than the day before
Bruising colourChanges from purple to yellow-green over daysSpreading rapidly alongside new swelling
PainTender but easing day on daySevere, worsening, or out of proportion to the lump size
Skin temperatureSlightly warm at first, then settlingHot to touch, with redness spreading outward
FeverNot presentAny fever alongside the lump
Typically startsWithin hours of the procedure, usually settling over days to weeksA growing haematoma most often declares itself within the first day

Does a haematoma after biopsy need to be drained?

Most haematomas do not need draining. Your body gradually absorbs the pooled blood, and the lump softens and flattens over days to weeks. The bruising often looks worse before it looks better — that is a normal part of the process.

A haematoma that is large, tense, rapidly expanding or not resolving as expected may be assessed with an ultrasound. Drainage is only considered where the haematoma is causing significant discomfort or is clearly not reabsorbing.

A haematoma at the biopsy site does not affect your biopsy result. The tissue sample was taken before the haematoma formed.

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Common questions

Frequently asked questions

How long does a haematoma after biopsy take to go away?

Most small haematomas soften and flatten over the course of days to a couple of weeks. Larger ones take longer. The bruising — the discolouration under the skin — often outlasts the swelling and may pass through shades of purple, brown and yellow before it clears. If the lump is not clearly improving over time, mention it to your team rather than waiting for it to resolve on its own.

Is it normal for bruising to spread away from the biopsy site?

Yes. Blood that pools under the skin follows gravity and the natural tissue planes, so discolouration can appear lower down than where the needle went in. This often looks alarming but is not a sign that something has gone wrong. What matters is whether the lump itself is growing, not whether the surface bruising has spread to a wider area.

Can a haematoma after biopsy become infected?

It can, though it is not common. A haematoma that becomes infected usually develops fever, increasing warmth, spreading redness and sometimes discharge from the site. If you notice any of those changes, call your team the same day or go to the emergency department. An infected haematoma needs different treatment from an uncomplicated one and should not be managed at home.

Will the haematoma affect my biopsy result?

No. The tissue sample was removed before the haematoma formed. A haematoma is what happens to the site after the sample is taken, not to the sample itself. If you are waiting for a result, the haematoma does not change it, delay it, or affect what the pathologist sees.

Full index

Browse all 701 biopsy topics

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What Is a Biopsy?

What Is a Biopsy? Everything You Need to Know →

Types of Biopsy Compared

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Preparing for a Biopsy

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Recovery and Aftercare

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Biopsy by Body Part

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Understanding Your Report

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IHC and Molecular Markers

IHC and Molecular Markers on a Biopsy: What They Mean →

Grading and Scoring Systems

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How Accurate Is a Biopsy?

How Accurate Is a Biopsy? Errors and Second Opinions →

If Your Result Is Benign

Your Biopsy Is Benign: What It Means and What Comes Next →

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