Was your postpartum blood clot missed — and could it be medical negligence?

Was your postpartum blood clot missed — and could it be medical negligence?

When a hospital fails to prevent or detect a blood clot after birth, the consequences can be devastating — and the law may hold that failure to account.
You gave birth. You were supposed to be recovering. Instead, something felt wrong — a swollen leg, chest pain, breathlessness — and nobody seemed to take it seriously. Or perhaps a clot formed that a proper prevention plan should have stopped. You are not overreacting. Postpartum blood clots are a known, preventable risk, and hospitals carry a clear duty to manage that risk. This article explains what should have happened, where care sometimes fails, and what the law says about it.
What Should Have Happened: The Standard of Care for Postpartum VTE
STEP 1

Assess VTE risk on admission using a validated scoring tool

STEP 2

Prescribe compression stockings and/or blood-thinning medication as indicated

STEP 3

Monitor for symptoms of DVT or PE during hospital stay and at discharge

STEP 4

Provide clear discharge instructions and arrange follow-up for high-risk patients

STEP 5

Clot prevented or detected early — mother recovers safely

If a clinician skipped any of these steps, the failure may have directly contributed to a preventable blood clot or a delayed diagnosis.

Understanding postpartum VTE: what normally happens

Postpartum venous thromboembolism — often shortened to VTE — is a blood clot that forms in a vein after childbirth. The term covers two related conditions. A deep vein thrombosis (DVT) is a clot that forms in a deep vein, usually in the leg. A pulmonary embolism (PE) is a clot that travels to the lungs. Both are serious. A pulmonary embolism can be fatal within minutes if clinicians do not treat it promptly.

Pregnancy and the weeks after birth significantly raise a woman’s risk of developing a clot. The body’s blood-clotting system becomes more active during pregnancy to prepare for the blood loss of delivery. After birth, that heightened clotting activity does not switch off immediately. Combined with reduced movement during recovery, this creates a window of real danger — typically the first six weeks after delivery.

What proper prevention looks like

Australian hospitals follow national guidelines that require clinicians to assess every pregnant and postpartum patient for VTE risk. Midwives and obstetricians use a scoring tool that weighs up factors like caesarean delivery, obesity, a previous clot, prolonged bed rest, and certain medical conditions. Patients with a moderate or high score should receive preventive treatment — usually compression stockings, low-molecular-weight heparin injections (a blood-thinning medication), or both.

Clinicians should also tell patients what symptoms to watch for after they go home. Leg swelling, redness, warmth, chest pain, and shortness of breath all warrant urgent review. For more general information about blood clots and their symptoms, Healthdirect Australia provides reliable, plain-English guidance.

Key fact: Postpartum VTE is one of the leading causes of maternal death in Australia.

Key fact: The risk of a blood clot is approximately five times higher in the six weeks after birth than at any other time in a woman’s life.

Key fact: Caesarean section raises VTE risk significantly compared with vaginal birth — national guidelines specifically address this.

Key fact: Most postpartum VTE events are preventable when clinicians follow established risk-assessment protocols.

When things start to go wrong

Not every complication after childbirth signals a failure of care. Some women develop clots despite receiving appropriate prevention. However, certain symptoms demand urgent clinical attention, and a clinician who dismisses or delays acting on those symptoms may have fallen below the standard of care.

Warning signs that should have prompted urgent action:

• One leg becoming noticeably more swollen, red, or warm than the other

• Pain in the calf or thigh that worsens when standing or walking

• Sudden shortness of breath or difficulty breathing

• Chest pain, especially pain that worsens with a deep breath

• A rapid or irregular heartbeat without another clear cause

• Feeling faint, dizzy, or collapsing after delivery

• Coughing up blood

Any one of these symptoms in a postpartum patient should trigger immediate investigation. A clinician who attributes leg swelling to normal post-birth fluid retention, or who sends a breathless new mother home without imaging, may have made a serious error in clinical judgement.

A common pattern — where care can break down

Postpartum VTE cases often follow a recognisable pattern. The failure rarely happens in one dramatic moment. Instead, a series of smaller oversights combine to produce a catastrophic outcome. The Australian Commission on Safety and Quality in Health Care has identified VTE prevention as a national safety priority precisely because these failures recur across hospitals.

No risk assessment on admission. The clinical team admits the patient, delivers the baby, and discharges the mother without ever completing a formal VTE risk score. Nobody identifies that this particular patient — perhaps post-caesarean, overweight, and immobile — sits in a high-risk category.

Prevention not prescribed. A risk assessment happens, but the treating team fails to act on it. The patient scores as high-risk, yet nobody prescribes heparin or compression stockings. The notes may show the score was recorded, but no prevention order follows.

Symptoms dismissed at bedside. The patient tells a midwife or junior doctor that her leg is swollen and painful. The clinician reassures her this is normal after birth. Nobody orders an ultrasound. The clot grows.

What should have happened
Clinician completes VTE risk score on admission and documents it
High-risk patient receives heparin and compression stockings before discharge
Leg swelling and pain triggers urgent Doppler ultrasound within hours
Discharge instructions clearly explain clot warning signs and when to seek help
What sometimes happens instead
No risk assessment completed — high-risk factors go unrecognised
Patient discharged without any preventive medication or stockings
Swollen leg dismissed as normal post-birth swelling — no imaging ordered
Patient sent home with no information about clot symptoms or follow-up plan

Failure to refer or escalate. A GP or community midwife sees the patient after discharge. She reports breathlessness. The clinician attributes it to tiredness and new-baby stress. Nobody refers her to an emergency department. Days later, she collapses.

Inadequate discharge planning. The hospital discharges the patient without written instructions about clot symptoms. Nobody tells her that chest pain after a caesarean is an emergency. She waits two days before seeking help, by which time the clot has caused permanent lung damage.

Why this matters legally

Every doctor, midwife, and hospital in NSW owes patients a duty of care — a legal obligation to provide treatment that meets the standard of a reasonably competent clinician in that field. This duty does not guarantee a perfect outcome. Medicine involves risk, and some complications occur even when clinicians do everything right.

The legal question is not whether something went wrong. It is whether the clinical team acted as a reasonably competent team would have acted in the same circumstances. When a hospital fails to follow its own VTE prevention protocol, or when a clinician ignores clear warning signs, that gap between what happened and what should have happened may constitute a breach of duty.

Not every missed clot is negligence. A woman who develops a PE despite receiving appropriate prevention, appropriate monitoring, and appropriate discharge advice has experienced a tragic complication — but not necessarily a legal wrong. The law focuses on whether the care itself fell below an acceptable standard. For a broader explanation of how this works, see Reframe Legal — Medical Negligence.

When Does a Care Failure Become Legal Negligence? — The Three Elements
1. Duty of Care
The treating clinician owed you a duty to provide competent care for postpartum VTE prevention and detection
2. Breach
The care fell below the standard a competent clinician would have met — for example, failing to complete a risk assessment or ignoring clot symptoms
3. Causation
The breach caused harm — a clot that formed, worsened, or caused permanent injury because proper care was not provided
NOT necessarily negligence

A pulmonary embolism that develops despite a completed risk assessment, prescribed heparin, and clear discharge instructions — some clots occur even with proper care

MAY BE negligence

A high-risk post-caesarean patient discharged without heparin who develops a fatal PE — where no risk assessment was completed and no prevention was offered

This is a general educational framework only. Each case is assessed on its individual facts.

When postpartum VTE may amount to medical negligence

The NSW Civil Liability Act 2002 sets the legal framework for medical negligence claims in this state. In plain terms, it says a clinician breaches their duty of care when they act in a way that a peer group of competent clinicians would not regard as acceptable. Applied to postpartum VTE, several specific failures can cross that line.

If the hospital never completed a VTE risk assessment, and you developed a clot that preventive treatment would likely have stopped, the failure to assess may constitute a breach. National guidelines make risk assessment mandatory. A hospital that ignores its own protocol has a difficult position to defend.

If a clinician dismissed your symptoms — leg pain, swelling, breathlessness — without ordering appropriate tests, and a clot was later found, that dismissal may have caused a delay that worsened your outcome. Earlier diagnosis typically means less damage to veins or lung tissue.

If nobody told you what to watch for after discharge, and you did not seek help promptly because you did not know your symptoms were dangerous, the failure to inform may have contributed directly to the harm you suffered.

If a GP or community midwife saw you after discharge, noted concerning symptoms, and failed to refer you urgently, that clinician may also carry responsibility. Negligence does not always rest with the hospital alone.

When harm becomes long-term or permanent

A blood clot that receives prompt treatment often resolves without lasting damage. However, when diagnosis is delayed or prevention fails entirely, the consequences can follow a woman for the rest of her life.

  • 1
    Acute phase — days 1 to 14A DVT causes pain, swelling, and immobility. A PE causes breathlessness, chest pain, and in severe cases, cardiac arrest. Hospitalisation, anticoagulation therapy, and sometimes intensive care become necessary.
  • 2
    Short-term recovery — weeks 2 to 12The mother cannot care for her newborn as expected. She may need ongoing blood-thinning medication, which requires regular monitoring. Breastfeeding plans may be disrupted. Anxiety and post-traumatic stress commonly develop during this period.
  • 3
    Post-thrombotic syndrome — months to yearsUp to half of DVT patients develop post-thrombotic syndrome — a condition where damaged vein valves cause chronic leg pain, swelling, and skin changes. This condition has no cure and requires long-term management.
  • 4
    Chronic thromboembolic pulmonary hypertensionA small proportion of PE survivors develop permanent high blood pressure in the lungs. This condition progressively limits exercise tolerance and, in severe cases, shortens life expectancy significantly.
  • 5
    Psychological and financial consequencesMany women experience lasting anxiety, depression, and fear of future pregnancies. Lost income during recovery, ongoing medical costs, and the need for paid help with childcare and household tasks all compound the financial burden.

What compensation can cover in postpartum VTE cases

NSW law allows a person harmed by medical negligence to seek compensation for the losses that flow from that harm. Compensation in these cases typically covers pain and suffering, lost income (past and future), the cost of ongoing medical treatment, and the cost of care and assistance the person now needs because of their injury.

In postpartum VTE cases, compensation may also account for the loss of the early weeks with a newborn — a period that cannot be recovered — and the psychological impact of a near-fatal event during what should have been a joyful time.

Level of harm Typical compensation range
Moderate injury $50,000–$150,000
Serious injury $150,000–$500,000
Severe / life-changing injury $500,000+

Each case is assessed on its own facts. These figures are general ranges only. The severity of the clot, the degree of permanent damage, the impact on earning capacity, and the quality of the evidence all affect the final figure.

Time limits apply in NSW. Generally, a person has three years from the date they knew — or ought reasonably to have known — that they suffered harm as a result of negligence. Acting promptly preserves your options.

Bringing it together — do the pieces fit?

Medical negligence cases involving postpartum VTE often hinge on three questions. First, did the clinical team identify your risk level? Second, did they act on that risk appropriately? Third, when symptoms appeared, did they respond with the urgency those symptoms demanded?

Questions to ask yourself
These are not legal questions. They are prompts to help you think clearly about what happened.
?
Did anyone at the hospital assess your risk of developing a blood clot before or after delivery?
?
Did you receive compression stockings or blood-thinning injections during your hospital stay?
?
Did you report leg swelling, pain, or breathing difficulties — and did a clinician dismiss those symptoms without investigation?
?
Did the hospital give you written information about clot warning signs before you went home?
?
Has the clot caused lasting physical harm — chronic leg problems, lung damage, or ongoing anxiety — that affects your daily life?
If several of these resonate with your experience, the circumstances may be worth examining more carefully.

If your answers suggest a gap between what happened and what should have happened, the next step is understanding how a formal claim works. Reframe Legal — How Medical Negligence Claims Work in NSW explains the process in plain English.

You don’t need certainty to understand your position

Many women who experienced a postpartum blood clot spend months — sometimes years — wondering whether what happened to them was avoidable. Self-doubt is natural. Hospitals carry authority. Clinicians use language that is hard to challenge. The power imbalance is real.

Legal clarity does not require you to be certain that negligence occurred. It requires an honest examination of the facts — the medical records, the clinical notes, the discharge paperwork, and the timeline of events. A lawyer with expertise in this area reads those documents differently from the way a patient reads them. Patterns that seem unremarkable to a layperson can reveal clear departures from accepted standards.

Consent is also relevant in some postpartum VTE cases. If a clinician recommended against preventive treatment, or if you were not told about your risk level and your options, the failure to inform may itself constitute a legal wrong. Reframe Legal — Informed Consent and Medical Negligence explains how this works.

If you want to understand whether the clinicians involved remain registered and in good standing, AHPRA — Australian Health Practitioner Regulation Agency maintains a public register of all registered health practitioners in Australia.

About the lawyer behind this article

Dr Rosemary Listing — Medical Negligence Lawyer

Dr Rosemary Listing is a NSW lawyer with a PhD focused on medical negligence. Her academic and clinical background gives her an unusually detailed understanding of how healthcare systems are supposed to work — and where they fall short.

Postpartum VTE cases occupy a particular place in her practice. These cases involve a known, preventable risk that national guidelines address directly. When a hospital fails to follow those guidelines, and a mother suffers lasting harm during one of the most vulnerable periods of her life, the gap between what should have happened and what did happen is often clearly documented in the clinical record.

Dr Listing’s experience in this area reflects a consistent pattern: the harm rarely comes from the clot itself. It comes from the delay — the missed risk assessment, the dismissed symptom, the discharge without information. That delay is where the legal question lives.

The women who approach her are not looking to blame anyone. They want to understand what happened to them, and whether the care they received met an acceptable standard. That is the question her work is designed to answer.

Dr Listing reviews the medical records, applies the relevant clinical guidelines, and provides an honest assessment of whether the standard of care was met. Her role is to give clarity — not to make promises about outcomes.

This article is general legal information only. It does not constitute legal advice. Each person’s circumstances are different. The law discussed applies to New South Wales, Australia. Time limits apply to legal claims.

Contact Dr Rosemary Listing At Peter Evans & Associates

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