“Nobody Ever Told Me Why”: Why Did I Bleed So Much After Birth?
In this article
Most women who haemorrhage after birth leave hospital without a clear answer to the simplest question: why? This article explains the four main causes of postpartum haemorrhage (PPH), the risk factors that should have been on your chart, how to find your cause in your own records, and what the answer means for your health, your next pregnancy and any questions about your care.
Quick answer · updated November 2026
Most postpartum haemorrhages are caused by the uterus not contracting after birth (uterine atony). Others come from a tear, placenta or tissue left inside, or a clotting problem. Many women have no risk factors at all. You are entitled to know which cause applied to you, and your records usually hold the answer.
Where the cause can begin
- 1In pregnancyAnaemia, placenta position, previous PPH or caesarean.
- 2In labourLong labour, induction, Syntocinon, forceps or vacuum.
- 3The placentaThird stage management and checking it is complete.
- 4The first hourTears found, bladder emptied, blood loss measured.
- 5AfterwardsFinding your cause in the records and asking.
At any stage after birth: soaking a pad in an hour, passing large clots, fever or feeling faint means you need care today. Call 000 if the bleeding is heavy.
At my six-week check the doctor had my discharge summary up on her screen. I could see it from the bed: “PPH 1.8 L. Transfused 2 units.” The paper sheet crinkled under me every time I moved.
I said, “Can I ask why it happened?”
She said, “Sometimes the uterus just doesn’t contract. These things happen. You were in the right place.” And then she asked about contraception.
I nodded. I actually said thank you. In the car I sat with the baby asleep in the back and I thought, but why mine? I had done everything. I’d gone to every appointment, I’d taken the iron, I’d read all the books. Nobody had mentioned the bleeding even once before the birth. Nobody had said, “Your labour was long, so we’re watching for this.”
That night I wrote it in the notes app: Why did I bleed? It sat there for months, at the top of the list above the shopping.
A composite story, drawn from the experiences of many families I have worked with, combined and changed so that no one can be identified. It does not describe any individual client.
If you have been told “these things happen”, it may be partly true. Postpartum haemorrhage can happen at any birth, to women with no risk factors, with excellent care. But “these things happen” is not an explanation. It is the absence of one. And without an explanation you can’t understand your own body, plan another pregnancy, or know whether your care was what it should have been.
This article is for the woman who left hospital without a reason, and for anyone trying to help her find one. It is part of a series that starts with “I thought I was going to die”: postpartum haemorrhage, what happened and what you can do.
Why I can write this
I have practised medical negligence law since 2013 and worked on many hundreds of claims, many about birth. My doctorate studied patterns of failure in medical negligence. I am not medically qualified. The clinical information here comes from the NSW Health postpartum haemorrhage guideline (GL2025_013), the RANZCOG statement on PPH (C-Obs 43) and the other Australian sources listed at the end.
Start with your question
- “They said my uterus didn’t contract. Why not?” Tone: uterine atony
- “Could it have been a tear nobody found?” Trauma: tears and injuries
- “My placenta came out ‘in bits’. Does that matter?” Tissue: retained placenta
- “Could I have a bleeding disorder?” Thrombin: clotting problems
- “Was it my fault because I was anaemic?” Risk factors in pregnancy
- “Did the induction or Syntocinon cause it?” Risk factors in labour
- “Where do I find the answer?” What to look for in the records
The four Ts
Doctors and midwives sort the causes of PPH into four groups, known as the four Ts. NSW Health’s guideline gives an idea of how common each is. More than one can happen at once: a long labour can leave the uterus tired and a tear can bleed and clotting can fail once enough blood has been lost.
Definition
The four Ts: Tone (the uterus doesn’t contract, about 70% of cases), Trauma (bleeding from a tear or injury, about 20%), Tissue (placenta, membranes or clots left behind, about 10%) and Thrombin (a clotting problem, about 1%). Some guidelines add a fifth T, Theatre, for the surgery that may be needed to treat any of them.
In plain terms: you bled either because the uterus didn’t squeeze shut, because something was torn, because something was left inside, or because your blood couldn’t clot. Knowing which tells you most of what you need to know.
Tone: when the uterus doesn’t contract
When your placenta comes away it leaves a raw area the size of a dinner plate inside your uterus, fed by large blood vessels. The main thing that stops the bleeding is the uterine muscle contracting hard and clamping those vessels. When it doesn’t, that is called uterine atony, and it is the most common cause of PPH by far.
Atony is more likely when the uterus is tired or overstretched. The NSW Health guideline lists risk factors including a long first, second or third stage of labour; a very fast labour; twins or more; a lot of amniotic fluid; a large baby; infection in labour; a general anaesthetic; and the use of oxytocin to start or speed up labour. A full bladder can also stop the uterus contracting properly, which is why emptying the bladder is one of the first steps in treating a bleed.
Atony isn’t a diagnosis of anyone’s fault. A tired uterus is a physical fact. The questions it raises are about what was done with that knowledge: whether the risk was recognised in advance, whether extra drugs were ready, whether blood loss was measured, and how quickly treatment escalated when bleeding didn’t stop. RANZCOG also says clinicians should exclude the other causes, not assume atony.
Questions to ask
- Was my PPH recorded as atony? Who decided that, and on what basis?
- Were my risk factors for atony recognised during labour, and was there a plan for the third stage?
- Was my bladder checked and emptied?
- Were the vagina and cervix examined to rule out a tear?
Trauma: tears and injuries
About one in five haemorrhages come from injury rather than atony. This can be a perineal tear or episiotomy, a tear high in the vagina (sometimes called a sulcal tear), a tear in the cervix, bleeding from a caesarean incision that extends, or rarely a ruptured uterus.
The particular danger with trauma is that the uterus can be contracting perfectly while bleeding continues from somewhere else. RANZCOG says the perineum, vagina and cervix should all be visually inspected for bleeding sources, and that if a woman is shocked but visible bleeding looks normal, staff should consider bleeding inside the abdomen. Tears high in the vagina or on the cervix are hard to see in a delivery room, and some women need to go to theatre with proper light and anaesthesia before the source is found.
If your notes say your uterus was “firm” or “well contracted” while you kept bleeding, ask what was done to look for a tear and when. My articles on missed and unexplained tears and whether a severe tear could have been prevented go into the tear side of this. If your bleed came after a caesarean, see the caesarean injuries no one warns you about.
Tissue: when something is left behind
If part of the placenta, a piece of membrane, or a large clot stays inside the uterus, the uterus can’t contract down fully and keeps bleeding. Pregnancy, Birth and Baby explains that a placenta is considered retained if it hasn’t come out within 30 minutes with active management, or within an hour with a natural third stage, and that retained placenta can cause infection or life-threatening blood loss.
Even when the placenta does come out, a piece can be missing. That is why the placenta and membranes are meant to be checked as complete after every birth. RANZCOG notes that even a placenta that looks complete may hide a missing lobe, so the uterus should be explored when bleeding persists. Retained tissue is also a major cause of bleeding that starts days or weeks later, which I cover in “I passed a clot the size of a golf ball”.
A rarer form of “tissue” is placenta accreta spectrum, where the placenta grows too deeply into the uterine wall and won’t separate. WA’s placenta accreta information booklet lists previous caesarean, placenta praevia, previous uterine surgery and IVF among the main risk factors, and notes ultrasound usually, but not always, detects it. NSW Health requires placental site to be confirmed by ultrasound for every woman with a previous caesarean. If you had placental problems, read placenta praevia: all about the complication and Pregnancy, Birth and Baby on placenta accreta.
Thrombin: when blood can’t clot
Clotting problems cause only about 1% of haemorrhages directly, but they matter. Some women have an inherited bleeding disorder, such as von Willebrand disease, that was never diagnosed; heavy periods since adolescence, bleeding after dental work or easy bruising can be clues. Others develop a clotting failure during the birth because of severe pre-eclampsia, placental abruption, infection, amniotic fluid embolism, or massive blood loss itself.
The NSW Health guideline says women who had a severe PPH with shock, or needed a massive haemorrhage protocol, should be screened for an inherited clotting disorder before discharge if there is concern that this was the cause. If you have ever wondered whether you “just bleed more”, it is reasonable to ask your GP about testing. Haemophilia Foundation Australia supports people with von Willebrand disease and other bleeding disorders.
Look for in your notes
“Atony”, “boggy uterus”, “fundal massage”, a Syntocinon infusion, ergometrine or carboprost, a balloon.
In plain terms: they were working to make your uterus contract.
Look for in your notes
“Laceration”, “sulcal tear”, “cervical tear”, “EUA” (examination under anaesthetic), a repair in theatre.
In plain terms: they found an injury that was bleeding.
Look for in your notes
“Placenta incomplete”, “ragged membranes”, “MROP” (manual removal of placenta), “RPOC”, “uterine exploration”.
In plain terms: something was left inside and had to be removed.
Look for in your notes
“Coagulopathy”, “DIC”, low fibrinogen or platelets, cryoprecipitate, “ROTEM”, a haematology referral.
In plain terms: your blood wasn’t clotting properly.
Common terms only. Your hospital may use different wording; ask if something isn’t clear.
Risk factors in pregnancy: what should have been on your chart
Most women who haemorrhage had no risk factors beforehand. That is exactly why NSW Health requires every birth to be treated as a possible PPH. But where risk factors are present, the guideline requires them to be assessed throughout pregnancy and labour and built into a written plan made with you, including how the third stage will be managed and which drugs will be used.
Risk factors that should prompt a plan
- A previous postpartum haemorrhage, or a previous retained placenta
- Anaemia in pregnancy, especially if it wasn’t corrected before birth
- A previous caesarean, placenta praevia or suspected placenta accreta
- Twins or more, a lot of amniotic fluid, or a baby expected to be large
- Bleeding earlier in this pregnancy, pre-eclampsia, or fibroids
- A known bleeding disorder, or blood-thinning medication
- Being 35 or older, or a BMI over 35
What the plan should include: where you should give birth, whether a drip should be in place in labour, how the third stage will be managed, and what drugs and blood should be ready. If none of this was discussed with you, ask why.
Drawn from Appendix 11.1 of the NSW Health PPH guideline (GL2025_013). The list is not exhaustive.
The guideline also lists some ethnic backgrounds, including Aboriginal, Asian, Sub-Saharan African and Pacific Islander women, along with recently arrived refugees and adolescents, as having a higher risk, partly because of higher rates of anaemia and iron deficiency. Being in one of these groups isn’t a reason to be blamed or dismissed; it is a reason for closer screening.
The question of anaemia
Many women in online forums ask whether low iron caused their haemorrhage. The honest answer is that anaemia mainly makes a haemorrhage more dangerous: with fewer red cells in reserve, the same blood loss hits harder. Queensland Clinical Guidelines note a strong association between low antenatal haemoglobin and PPH, and NSW Health says maternal morbidity from PPH is higher in women with moderate or severe anaemia. NSW Health requires haemoglobin to be checked early in pregnancy and at 28 weeks, iron studies for women at higher risk, and treatment, including an iron infusion if tablets don’t work. If you were anaemic and nothing was done, that is worth noticing. If you took every tablet and were still anaemic, that is not your fault.
Risk factors in labour: induction, Syntocinon and long labours
Women who haemorrhage after long inductions often ask whether the Syntocinon caused it. The NSW Health guideline lists oxytocic use to induce or augment labour as a risk factor for atony, alongside long labour, a very fast labour, infection, and forceps or vacuum births. It does not say induction is wrong, and for many women induction is the safer choice. What it does mean is that a long, augmented labour is a known risk, and the third stage should be planned with that in mind.
It also bears on consent. If you were offered an induction, the risks you would want to know about, including a higher chance of needing more interventions and of bleeding afterwards, should have been explained. My article “I felt pushed into it”: induction, consent and an unplanned caesarean explores this, and Syntocinon misuse explains when the drug itself was used unsafely.
The third stage: delivering the placenta
Australian guidelines recommend offering active management of the third stage: an oxytocin injection as the baby is born and help delivering the placenta. RANZCOG says this roughly halves the risk of PPH. NSW Health says women choosing a natural (physiological) third stage should be told when a switch to active management would be recommended, such as blood loss over 300 mL and continuing, or a placenta not delivered within an hour.
NSW Health also recommends skin-to-skin contact and early breastfeeding after birth as ways to help the uterus contract, because both release your body’s own oxytocin. If you and your baby were separated straight after the birth, for whatever reason, that is one small part of the picture.
The first hour: how causes get missed
Under NSW Health’s guideline, the woman should be closely watched for at least an hour after the placenta is delivered, with uterine tone, cumulative measured blood loss and observations recorded, and she shouldn’t be left alone. When bleeding passes 300 mL and continues, staff should assess the cause. At 500 mL and continuing, a doctor must be called immediately.
In my experience causes are missed less through ignorance than through momentum. Atony is assumed because it is common, so the vagina and cervix aren’t checked until much later. The placenta is glanced at and recorded as complete. Blood loss is estimated as a round number rather than weighed. Each of these makes it harder to find the real cause quickly, and for you to learn it later. My article what happens during a postpartum haemorrhage walks through the emergency itself.
What to look for in the records
Your hospital records usually contain the answer to “why”, even if no one said it out loud. Ask for the complete file, not a summary; my guide to getting and reading your birth records explains how.
| Record | What it can tell you about the cause |
|---|---|
| Antenatal record and blood tests | Your haemoglobin and ferritin through pregnancy, placenta position on scans, and any risk factors noted, with or without a plan. |
| Partogram and labour notes | How long each stage lasted, whether Syntocinon was used and at what rate, and whether there was a fever or an instrumental birth. |
| Third stage and placenta check | How the placenta was delivered, how long it took, and whether placenta and membranes were recorded as complete, incomplete or not checked. |
| Perineal and genital tract assessment | Whether the vagina and cervix were examined, when, and what was found and repaired. |
| PPH record or proforma | Many hospitals use a form that records the cause using the four Ts. Look for which box was ticked. |
| Medication chart | Which drugs were given and when. Drugs for contraction point to atony; tranexamic acid or blood products may point to clotting. |
| Operation report | What was found in theatre: tears, retained tissue, an accreta, or a uterus that wouldn’t contract. |
| Blood results and transfusion records | Clotting tests, fibrinogen and platelets, and any request for haematology review. |
| Histopathology | If the placenta or tissue was sent to the lab, the report can confirm retained products or an accreta. |
If the cause is still not clear, you can ask for a birth debrief. NSW Health says women may need repeated or delayed opportunities to debrief, including after they leave hospital. Take a list of questions.
Seven months later I sat in a small room with a senior midwife and an obstetrician I’d never met, my records in a lever-arch folder on the table between us. I’d put coloured tabs on it. I think that surprised them.
I went to the page I’d flagged in orange. Third stage. Placenta delivered at 18 minutes. Then, in handwriting: “Membranes ragged ? complete.” With a question mark.
The obstetrician read it for a long time. Then he said, “That would usually prompt us to check the uterus.” And a few pages later, there it was: forty minutes on, after the second drug, “exploration of uterus, small piece of placental tissue removed.”
So it wasn’t just that my uterus didn’t contract. Something was left inside, and it stopped it contracting. That was why. I didn’t feel angry in the room. I felt something more like relief, like a word I’d been trying to remember for months had finally come. In the car I opened the notes app and deleted the question.
A composite story, drawn from the experiences of many families I have worked with, combined and changed so that no one can be identified. It does not describe any individual client.
How the law looks at it
Knowing the cause isn’t the same as knowing whether care fell short. But the cause shapes every legal question.
Standard of care
Under section 5O of the Civil Liability Act 2002 (NSW), a health professional isn’t negligent if they acted in a way widely accepted in Australia by peer professional opinion as competent practice, unless that opinion is irrational. Guidelines like the NSW Health guideline and the RANZCOG statement are evidence of competent practice, not the law itself. Typical questions include whether known risk factors were acted on, whether a placenta recorded as incomplete was followed up, and whether the genital tract was examined when bleeding continued with a contracted uterus.
Causation
You have to show, on the balance of probabilities, that proper care would have made a real difference: less blood lost, no transfusion, no hysterectomy. In Tabet v Gett [2010] HCA 12 the High Court confirmed that losing only a chance of a better outcome isn’t enough. Cause matters here: a tear found and repaired an hour earlier, or tissue removed sooner, can make a measurable difference.
Consent
Under Rogers v Whitaker [1992] HCA 58, you were entitled to be told of material risks. If you had a known risk factor, or were being induced, the higher chance of bleeding was likely something you would have wanted to discuss.
Time limits
Claims in NSW generally have to be started within three years of when you knew, or ought to have known, enough to claim, with a twelve-year outer limit. Learning the cause from your records or a debrief can be part of that, so note the date. If your baby was also injured, their claim has its own rules and doesn’t always wait until they turn 18. Read “Is it too late?” and medical negligence time limits in NSW.
In my practice
The pattern I see most often in haemorrhage files is what I think of as a default diagnosis. Atony is the most common cause, so it becomes the assumed cause, and once it is written down nobody revisits it. Meanwhile the clues to something else sit in the same file: a question mark beside “membranes complete”, a uterus described as firm while bleeding continued, a haemoglobin of 98 at 34 weeks with no follow-up, a fever in labour. None of these is dramatic. Together they can mean the cause was found late, treated late, and never explained. My doctoral research was about how these quiet chains form, and why reading a file slowly, page by page with the times side by side, matters so much.
Holding two truths
Your body may simply have done something bodies sometimes do. And you still deserve to know what it was. Both are true. Wanting a reason isn’t blaming anyone, and finding one isn’t always finding fault. Sometimes the answer is “a tired uterus after a long labour, managed well”, and that answer brings its own kind of peace. Sometimes it opens new questions. Either way, it is yours to know.
The bigger picture
Australian guidance has moved steadily towards recognising risk earlier and measuring blood loss rather than estimating it. Safer Care Victoria’s PPH collaborative focused on exactly this, and reported that PPH is often avoidable. NSW Health’s 2025 guideline strengthened requirements on antenatal anaemia, care planning with women, skin-to-skin contact, and debriefing. The NSW Birth Trauma inquiry heard repeatedly from women who left hospital without understanding what had happened to them. The question “why?” is not a small one; it sits at the centre of how maternity care is being reformed.
Support
- PANDA National Helpline: 1300 726 306. Support for parents, including partners.
- Gidget Foundation Australia: 1300 851 758. Free psychological sessions, including after birth trauma.
- Pregnancy, Birth and Baby: 1800 882 436. Maternal child health nurses, 7am to midnight.
- Birth Trauma Australia: online peer support for mothers and partners.
- Health Care Complaints Commission (NSW): 1800 043 159.
- Lifeline: 13 11 14, 24 hours. In an emergency, call 000.
More options are in finding support after birth trauma in Australia. If you were told your concerns were nothing, being dismissed by doctors may help.
The question that sat above the shopping list for seven months is gone now. In its place is one word, written in her own handwriting on the inside cover of the folder: tissue.
With care, Rosemary
Frequently asked questions
Why did I haemorrhage after giving birth?
Most often because the uterus didn’t contract well (atony). Other causes are a tear, placenta or tissue left inside, or a clotting problem. Your records usually show which applied.
What is uterine atony?
It means the uterus didn’t contract firmly after birth, so the blood vessels where the placenta was attached kept bleeding. It is more likely after long or induced labours, twins or a large baby.
Can induction or Syntocinon cause postpartum haemorrhage?
Using oxytocin to induce or speed up labour is a recognised risk factor for atony. It doesn’t mean induction was wrong, but the extra risk should be planned for.
Does anaemia cause postpartum haemorrhage?
Low iron is strongly associated with PPH and makes blood loss more dangerous. NSW Health requires anaemia to be checked and treated in pregnancy.
Could a missed tear cause heavy bleeding after birth?
Yes. About one in five PPHs come from injury, and tears high in the vagina or on the cervix can be hard to see without proper examination.
How do I find out why I bled so much?
Request your full records, look for the placenta check, genital tract assessment and PPH form, and ask for a debrief. You can do this months or years later.
Questions about why you bled?
When you’re ready, and not before, I can look at your records with you. A free case review means I listen, read what happened in the order it happened, and tell you honestly what I see, with no obligation.
The series: After a postpartum haemorrhage
- “I Thought I Was Going to Die”: Postpartum Haemorrhage (PPH), What Happened and What You Can Do
- “Is It Too Late?” PPH: Time Limits and What a Claim Can Cover
- “Nobody Ever Told Me Why”: Why Did I Bleed So Much? (you are here)
- “Their Arm Was Inside Me and No One Explained”: What Happens During a PPH
- “I Lost Over Two Litres”: Recovery, Anaemia and Milk Supply After a PPH
- “I Passed a Clot the Size of a Golf Ball”: Secondary PPH and Retained Placenta
- “I Kept Telling Them Something Was Wrong”: When PPH Care Falls Short
- “He Was Left Holding Our Baby in the Corner”: When Your Family Saw the Haemorrhage
- “I Still Wake Up Back in That Room”: PTSD After a PPH
- “Can It Happen Again?” Pregnancy and Birth After a PPH
- “They Had to Take My Uterus”: Emergency Hysterectomy After Birth
This series is part of my work on birth trauma and obstetric negligence. To see where else birth injuries happen, explore the birth injury map.
References
- NSW Health. Postpartum Haemorrhage, Guideline GL2025_013, including Appendix 11.1 (risk factors). August 2025.
- RANZCOG. Management of Postpartum Haemorrhage (C-Obs 43).
- Pregnancy, Birth and Baby. Retained placenta. Reviewed May 2026.
- Pregnancy, Birth and Baby. Placenta accreta.
- Women and Newborn Health Service (WA). Placenta accreta spectrum: patient information. 2025.
- Queensland Clinical Guidelines. Primary postpartum haemorrhage: clinical guideline education presentation. 2024.
- Pregnancy, Birth and Baby. Postpartum haemorrhage.
- Pregnancy, Birth and Baby. Haemophilia Foundation Australia.
- Safer Care Victoria. Postpartum Haemorrhage Collaborative: evaluation report. 2024.
- NSW Legislative Council Select Committee on Birth Trauma. Birth trauma, Report 1. May 2024.
- Civil Liability Act 2002 (NSW), s 5O.
- Tabet v Gett [2010] HCA 12.
- Rogers v Whitaker [1992] HCA 58; (1992) 175 CLR 479.
A composite story, drawn from the experiences of many families I have worked with, combined and changed so that no one can be identified. It does not describe any individual client.
